Explore topic-wise MCQs in Joint Entrance Exam - Main (JEE Main).

This section includes 8666 Mcqs, each offering curated multiple-choice questions to sharpen your Joint Entrance Exam - Main (JEE Main) knowledge and support exam preparation. Choose a topic below to get started.

3001.

Solution set of the inequality \[6\le -3(2x-5)

A. \[(0,\,3/2)\]       
B. \[\left( 1/2,\,3/2 \right]\]
C. \[\left[ 1/2,\,3/2 \right)\]  
D. \[\left[ 0,\,1/2 \right)\]
Answer» C. \[\left[ 1/2,\,3/2 \right)\]  
3002.

Solution set of the inequality \[4x-3\ge 3x-4\]is

A. (-1, 0)   
B. (1, \[\infty \])
C. \[\left( -\infty ,\,0 \right]\]
D. \[\left[ -1,\,\infty  \right)\]
Answer» E.
3003.

The solution set of \[\frac{5x+8}{4-x}\le 2\]is

A. \[(4,\,\infty )\cup \left( -\infty ,\,0 \right]\]
B. \[[4,\,\infty ]\cup \left( -\infty ,\,4 \right]\]
C. \[\left( -\infty ,\,0 \right]\cup (4,\,\infty )\]
D. \[[4,\,\infty ]\cup \left( -\infty ,\,0 \right]\]
Answer» D. \[[4,\,\infty ]\cup \left( -\infty ,\,0 \right]\]
3004.

For the inequality \[\frac{x}{3}+\frac{x}{2}

A. \[(-\infty ,\,6)\]  
B. \[(-\infty ,\,6]\]
C. \[[-\infty ,\,6)\]  
D. \[[-\infty ,\,6]\]
Answer» B. \[(-\infty ,\,6]\]
3005.

The set of values of x which satisfy the inequations\[5x+2

A. \[(-\infty ,\,1)\]  
B. (2, 3)
C. \[(-\infty ,\,3)\]  
D. \[(-\infty ,\,1)\cup (2,3)\]
Answer» E.
3006.

Which interval does the following number line represent?

A. (1, 1)    
B. (-2, 3)
C. \[\left( -1,\,4 \right]\]      
D. \[\left( -\infty ,\,-1 \right)\]
Answer» D. \[\left( -\infty ,\,-1 \right)\]
3007.

Which of the following set does not satisfy \[\left| x-3 \right|>4\]?

A. \[(-\infty ,-1)\]   
B. \[(7,-\infty )\]
C. \[(-1,7)\]           
D. none of these
Answer» D. none of these
3008.

\[\underset{n\to \infty }{\mathop{\lim }}\,{{\left( \frac{{{n}^{2}}-n+1}{{{n}^{2}}-n-1} \right)}^{n(n-1)}}\]is equal to

A. \[e\]                 
B. \[{{e}^{2}}\]
C. \[{{e}^{-1}}\]            
D. 1
Answer» C. \[{{e}^{-1}}\]            
3009.

The value of \[\underset{m\to \infty }{\mathop{\lim }}\,{{\left( \cos \frac{x}{m} \right)}^{m}}\]is

A. 1                     
B. \[e\]
C. \[{{e}^{-1}}\]            
D. none of these
Answer» B. \[e\]
3010.

\[\underset{n\to \infty }{\mathop{\lim }}\,\sum\limits_{x=1}^{20}{{{\cos }^{2n}}(x-10)}\]is equal to

A. 0                     
B. 1
C. 19                   
D. 20
Answer» C. 19                   
3011.

The value of \[\underset{x\to 2}{\mathop{\lim }}\,\frac{{{2}^{x}}+{{2}^{3-x}}-6}{\sqrt{{{2}^{-x}}}-{{2}^{1-x}}}\]is

A. 16                    
B.                   8
C. 4                    
D. 2
Answer» C. 4                    
3012.

The value of \[\underset{x\to 2}{\mathop{\lim }}\,\frac{\sqrt{1+\sqrt{2+x}}-\sqrt{3}}{x-2}\] is

A. \[\frac{1}{8\sqrt{3}}\]  
B. \[\frac{1}{4\sqrt{3}}\]
C. 0                    
D. None of these
Answer» B. \[\frac{1}{4\sqrt{3}}\]
3013.

If \[{{x}^{m}}{{y}^{n}}={{(x+y)}^{m+n}}\], then \[dy/dx\]is equal to

A. \[\frac{y}{x}\]             
B. \[\frac{x+y}{xy}\]
C. \[xy\]               
D. \[\frac{x}{y}\]
Answer» B. \[\frac{x+y}{xy}\]
3014.

Let y be an implicit function of x defined by \[{{x}^{2x}}-2{{x}^{x}}\cot y-1=0\]. Then y'(1) equals

A. -1                    
B. 1
C. \[log\text{ }2\]               
D. \[-log\text{ }2\]
Answer» B. 1
3015.

\[\underset{x\to 0}{\mathop{\lim }}\,\frac{1}{x}{{\cos }^{-1}}\left( \frac{1-{{x}^{2}}}{1+{{x}^{2}}} \right)\]is equal to

A. 1                     
B. 0
C. 2                    
D. none of these
Answer» E.
3016.

If then \[\frac{dy}{dx}\] is

A. \[\frac{2xy}{2y-{{x}^{2}}}\]  
B. \[\frac{xy}{y+{{x}^{2}}}\]
C. \[\frac{xy}{y-{{x}^{2}}}\]
D. \[\frac{2xy}{2+{{\frac{x}{y}}^{2}}}\]
Answer» B. \[\frac{xy}{y+{{x}^{2}}}\]
3017.

If \[y={{\tan }^{-1}}\sqrt{\frac{x+1}{x-1}}\]. Then \[\frac{dy}{dx}\]is

A. \[\frac{-1}{2\left| x \right|\sqrt{{{x}^{2}}-1}}\]
B. \[\frac{-1}{2x\sqrt{{{x}^{2}}-1}}\]
C. \[\frac{1}{2x\sqrt{{{x}^{2}}-1}}\]      
D. none of these
Answer» B. \[\frac{-1}{2x\sqrt{{{x}^{2}}-1}}\]
3018.

If \[y=1+x+\frac{{{x}^{2}}}{2!}+\frac{{{x}^{3}}}{3!}+...+\frac{{{x}^{n}}}{n!}\], then \[\frac{dy}{dx}\]is equal to

A. y                     
B. \[y+\frac{{{x}^{n}}}{n!}\]
C. \[y-\frac{{{x}^{n}}}{n!}\]      
D. \[y-1-\frac{{{x}^{n}}}{n!}\]
Answer» D. \[y-1-\frac{{{x}^{n}}}{n!}\]
3019.

If \[y=\sqrt{\log x+\sqrt{\log x+\sqrt{\log x+...\infty },}}\]then \[\frac{dy}{dx}\]is

A. \[\frac{x}{2y-1}\]         
B. \[\frac{x}{2y+1}\]
C. \[\frac{1}{x(2y-1)}\]     
D. \[\frac{1}{x(1-2y)}\]
Answer» D. \[\frac{1}{x(1-2y)}\]
3020.

If \[y={{x}^{({{x}^{x}})}}\], then \[\frac{dy}{dx}\]is

A.  \[y\left[ {{x}^{x}}(logex)logx+{{x}^{x}} \right]\]
B.  \[y\left[ {{x}^{x}}(logex)logx+x \right]\]
C.  \[y\left[ {{x}^{x}}(logex)logx+{{x}^{x-1}} \right]\]
D.  \[y\left[ {{x}^{x}}(lo{{g}_{e}}x)logx+{{x}^{x-1}} \right]\]
Answer» D.  \[y\left[ {{x}^{x}}(lo{{g}_{e}}x)logx+{{x}^{x-1}} \right]\]
3021.

If \[y={{\left( x+\sqrt{{{x}^{2}}+{{a}^{2}}} \right)}^{n}}\], then \[\frac{dy}{dx}\]is

A. \[\frac{ny}{\sqrt{{{x}^{2}}+{{a}^{2}}}}\]   
B. \[-\frac{ny}{\sqrt{{{x}^{2}}+{{a}^{2}}}}\]
C. \[\frac{nx}{\sqrt{{{x}^{2}}+{{a}^{2}}}}\]   
D. \[-\frac{nx}{\sqrt{{{x}^{2}}+{{a}^{2}}}}\]
Answer» B. \[-\frac{ny}{\sqrt{{{x}^{2}}+{{a}^{2}}}}\]
3022.

If \[\left| {{\sin }^{-1}}x \right|+\left| {{\cos }^{-1}}x \right|=\frac{\pi }{2}\], then x\[\in \]

A. R                     
B. \[\left[ -1,1 \right]\]
C. \[\left[ 0,1 \right]\]          
D. \[\phi \]
Answer» D. \[\phi \]
3023.

The number of integer x satisfying \[{{\sin }^{-1}}\left| x-2 \right|+{{\cos }^{-1}}(1-\left| 3-x \right|)=\frac{\pi }{2}\] is

A. 1                     
B. 2
C. 3         
D. 4
Answer» C. 3         
3024.

If \[{{\sin }^{-1}}x+{{\sin }^{-1}}y=\frac{\pi }{2}\], then \[\frac{1+{{x}^{4}}+{{y}^{4}}}{{{x}^{2}}-{{x}^{2}}{{y}^{2}}+{{y}^{2}}}\] is equal to

A. 1                     
B. 2
C. \[\frac{1}{2}\]              
D. none of these
Answer» C. \[\frac{1}{2}\]              
3025.

If\[a{{\sin }^{-1}}x-b{{\cos }^{-1}}x=c,\]then\[a{{\sin }^{-1}}x+b{{\cos }^{-1}}x\]is equal to

A. 0                     
B. \[\frac{\pi ab+c(b-c)}{a+b}\]
C. \[\frac{\pi }{2}\]            
D. \[\frac{\pi ab+c(a-b)}{a+b}\]
Answer» E.
3026.

The value of the expression \[{{\sin }^{-1}}\left( \sin \frac{22\pi }{7} \right)\]\[{{\cos }^{-1}}\left( \cos \frac{5\pi }{3} \right)\]+\[{{\tan }^{-1}}\left( \tan \frac{5\pi }{3} \right)\]+\[{{\sin }^{-1}}(cos2)\]is

A. \[\frac{17\pi }{42}-2\]
B. \[-\,2\]
C. \[\frac{-\pi }{21}-2\]      
D. none of these
Answer» B. \[-\,2\]
3027.

If \[\alpha \in \left( -\frac{3\pi }{2},-\pi  \right)\]then the value of \[{{\tan }^{-1}}(cot\alpha )\]-\[{{\cot }^{-1}}(tan\alpha )+si{{n}^{-1}}(sin\alpha )+co{{s}^{-1}}(cos\alpha )\]is equal to

A. \[2\pi +a\]        
B. \[\pi +a\]
C. 0                     
D. \[\pi -a\]
Answer» D. \[\pi -a\]
3028.

The function \[f(x)={{\tan }^{-1}}(\sin x+\cos x)\] is an increasing function in

A. \[\left( \frac{\pi }{4},\frac{\pi }{2} \right)\]           
B. \[\left( -\frac{\pi }{2},\frac{\pi }{4} \right)\]
C. \[\left( 0,\frac{\pi }{2} \right)\]     
D. \[\left( -\frac{\pi }{2},\frac{\pi }{2} \right)\]
Answer» C. \[\left( 0,\frac{\pi }{2} \right)\]     
3029.

The trigonometric equation \[{{\sin }^{-1}}x=2{{\sin }^{-1}}a\] has a solution for

A. \[\frac{1}{2}<\left| a \right|<\frac{1}{\sqrt{2}}\]
B. All real values of a
C. \[\left| a \right|<1/2\]
D. \[\left| a \right|\ge \frac{1}{\sqrt{2}}\]
Answer» D. \[\left| a \right|\ge \frac{1}{\sqrt{2}}\]
3030.

The number of real solutions of the equation\[\sqrt{1+\cos 2x}=\sqrt{2}{{\sin }^{-1}}(sinx),-\pi \le x\le \pi \] is

A. 0                     
B. 1
C. 2                     
D. infinite
Answer» D. infinite
3031.

\[{{\cot }^{-1}}(\sqrt{\cos \alpha })-ta{{n}^{-1}}(\sqrt{\cos \alpha })=x\], then sin x is equal to

A. \[{{\tan }^{2}}\frac{\alpha }{2}\]        
B. \[{{\cot }^{2}}\frac{\alpha }{2}\]
C. \[\tan \alpha \]
D. \[\cot \frac{\alpha }{2}\]
Answer» B. \[{{\cot }^{2}}\frac{\alpha }{2}\]
3032.

If \[{{\cos }^{-1}}x-{{\cos }^{-1}}\frac{y}{2}=\alpha ,\] then \[4{{x}^{2}}-4xy\,\cos \,\alpha +{{y}^{2}}\] is equal to

A. 4                     
B. \[2{{\sin }^{2}}\alpha \]
C. \[-4{{\sin }^{2}}\alpha \]         
D. \[4{{\sin }^{2}}\alpha \]
Answer» E.
3033.

The value \[2{{\tan }^{-1}}\left[ \sqrt{\frac{a-b}{a+b}}\tan \frac{\theta }{2} \right]\]is equal to

A. \[{{\cos }^{-1}}\left( \frac{a\cos \theta +b}{a+b\cos \theta } \right)\]
B. \[{{\cos }^{-1}}\left( \frac{a+b\cos \theta }{a\cos \theta +b} \right)\]
C. \[{{\cos }^{-1}}\left( \frac{a\cos \theta }{a+b\cos \theta } \right)\]
D. \[{{\cos }^{-1}}\left( \frac{b\cos \theta }{a\cos \theta +b} \right)\]
Answer» B. \[{{\cos }^{-1}}\left( \frac{a+b\cos \theta }{a\cos \theta +b} \right)\]
3034.

If \[3{{\sin }^{-1}}\left( \frac{2x}{1+{{x}^{2}}} \right)-4{{\cos }^{-1}}\left( \frac{1-{{x}^{2}}}{1+{{x}^{2}}} \right)+2{{\tan }^{-1}}\left( \frac{2x}{1-{{x}^{2}}} \right)=\frac{\pi }{3}\]where \[\left| x \right|

A. \[\frac{1}{\sqrt{3}}\]                 
B. \[-\frac{1}{\sqrt{3}}\]
C. \[\sqrt{3}\]                    
D. \[-\frac{\sqrt{3}}{4}\]
Answer» B. \[-\frac{1}{\sqrt{3}}\]
3035.

If \[{{\cot }^{-1}}(\sqrt{\cos \alpha )}-{{\tan }^{-1}}(\sqrt{\cos \alpha })=x\], then sin x is

A. \[{{\tan }^{2}}\frac{\alpha }{2}\]        
B. \[{{\cot }^{2}}\frac{\alpha }{2}\]
C. \[\tan \alpha \]   
D. \[\cot \frac{\alpha }{2}\]
Answer» B. \[{{\cot }^{2}}\frac{\alpha }{2}\]
3036.

The sum of the solutions of the equation\[2{{\sin }^{-1}}\sqrt{{{x}^{2}}+x+1}+{{\cos }^{-1}}\sqrt{{{x}^{2}}+x}=\frac{3\pi }{2}\]is

A. 0         
B. -1
C. 1                     
D. 2
Answer» C. 1                     
3037.

If \[\int \frac{\sin x}{\sin (x-\alpha )}dx=Ax+B\,\,\log \sin (x-\alpha )+c,\] then the value of (A, B) is

A. \[(sin\alpha ,\,cos\alpha )\]          
B. \[(cos\alpha ,\,\sin \alpha )\]
C. \[(-\sin \alpha ,\,\cos \alpha )\]
D. \[(-\cos \alpha ,\,\sin \alpha )\]
Answer» C. \[(-\sin \alpha ,\,\cos \alpha )\]
3038.

\[\int \frac{\sqrt{x-1}}{x\sqrt{x+1}}dx\]is equal to

A. \[\ln \,\left| x-\sqrt{{{x}^{2}}-1} \right|-{{\tan }^{-1}}x+c\]
B. \[\ln \,\left| x+\sqrt{{{x}^{2}}-1} \right|-{{\tan }^{-1}}x+c\]
C. \[\ln \,\left| x-\sqrt{{{x}^{2}}-1} \right|-{{\sec }^{-1}}x+c\]
D. \[\ln \,\left| x+\sqrt{{{x}^{2}}-1} \right|-{{\sec }^{-1}}x+c\]
Answer» E.
3039.

\[\int \frac{\cos 4x-1}{\cot x-\tan x}dx\]is equal to

A. \[\frac{1}{2}\ln \left| \sec 2x \right|-\frac{1}{4}{{\cos }^{2}}2x+c\]
B. \[\frac{1}{2}\ln \left| \sec 2x \right|+\frac{1}{4}{{\cos }^{2}}x+c\]
C. \[\frac{1}{2}\ln \left| \cos 2x \right|-\frac{1}{4}{{\cos }^{2}}2x+c\]
D. \[\frac{1}{2}\ln \left| \cos 2x \right|+\frac{1}{4}{{\cos }^{2}}x+c\]
Answer» D. \[\frac{1}{2}\ln \left| \cos 2x \right|+\frac{1}{4}{{\cos }^{2}}x+c\]
3040.

If\[\int \frac{3\sin x+2\cos x}{3\cos x+2\sin x}dx=ax+b\] ln\[\left| 2\sin x+3\cos x \right|+C\], then

A. \[a=-\frac{12}{13},b=\frac{15}{39}\]
B. \[a=-\frac{7}{13},b=\frac{6}{13}\]
C. \[a=\frac{12}{13},b=-\frac{15}{39}\]
D. \[a=-\frac{7}{13},b=-\frac{6}{13}\]
Answer» D. \[a=-\frac{7}{13},b=-\frac{6}{13}\]
3041.

  \[\int \frac{2\sin x}{(3+sin2x)}dx\]is equal to

A. \[\frac{1}{2}\ln \left| \frac{2+\sin x-\cos x}{2-\sin x+\cos x} \right|-\frac{1}{\sqrt{2}}{{\tan }^{-1}}\left( \frac{\sin x+\cos x}{\sqrt{2}} \right)+c\]
B. \[\frac{1}{2}\ln \left| \frac{2+\sin x-\cos x}{2-\sin x+\cos x} \right|-\frac{1}{2\sqrt{2}}{{\tan }^{-1}}\left( \frac{\sin x+\cos x}{\sqrt{2}} \right)+c\]
C. \[\frac{1}{4}\ln \left| \frac{2+\sin x-\cos x}{2-\sin x+\cos x} \right|-\frac{1}{\sqrt{2}}{{\tan }^{-1}}\left( \frac{\sin x+\cos x}{\sqrt{2}} \right)+c\]
D. none of these
Answer» D. none of these
3042.

\[\int \frac{{{\sin }^{8}}x-{{\cos }^{8}}x}{1-2{{\sin }^{2}}x{{\cos }^{2}}x}dx\] is equal to

A. \[\frac{1}{2}\sin 2x+C\]
B. \[-\frac{1}{2}\sin 2x+C\]
C. \[-\frac{1}{2}\sin x+C\] 
D. \[-{{\sin }^{2}}x+C\]
Answer» C. \[-\frac{1}{2}\sin x+C\] 
3043.

If \[A=\int_{0}^{\pi }{\frac{\operatorname{cosx}}{{{(x+2)}^{2}}}dx,}\] then \[A=\int_{0}^{\pi /2}{\frac{\sin 2x}{x+1}dx,}\] is equal to

A. \[\frac{1}{2}+\frac{1}{\pi +2}-A\]
B. \[\frac{1}{\pi +2}-A\]
C. \[1+\frac{1}{\pi +2}-A\]
D. \[A-\frac{1}{2}-\frac{1}{\pi +2}\]
Answer» B. \[\frac{1}{\pi +2}-A\]
3044.

If \[\int_{1}^{2}{{{e}^{{{x}^{2}}}}dx=a}\], then \[\int_{e}^{{{e}^{4}}}{\sqrt{\ln x}}\,dx\] is equal to

A. \[2{{e}^{4}}-2e-a\]     
B. \[2{{e}^{4}}-e-a\]
C. \[2{{e}^{4}}-e-2a\]     
D. \[{{e}^{4}}-e-a\]
Answer» C. \[2{{e}^{4}}-e-2a\]     
3045.

If \[\int_{0}^{1}{{{\cot }^{-1}}(1-x+{{x}^{2}})dx=\lambda \int_{0}^{1}{{{\tan }^{-1}}xdx,}}\] then \[\lambda \] is equal to

A. 1                     
B. 2
C. 3         
D. 4
Answer» C. 3         
3046.

If \[f(x)=\frac{{{e}^{x}}}{1+{{e}^{x}}},\,\,\,{{I}_{1}}=\int\limits_{f(-a)}^{f(a)}{xg\,(x(1-x))dx,}\] and \[{{I}_{2}}=\int\limits_{f(-a)}^{f(a)}{g(x(1-x))dx,}\] then the value of \[\frac{{{I}_{2}}}{{{I}_{1}}}\]is

A. \[-\,1\]              
B. \[-\,2\]
C. 2                     
D. 1
Answer» D. 1
3047.

Given \[\int\limits_{0}^{\pi /2}{\frac{dx}{1+\sin x+\cos x}=\log \,2.}\] Then the value of the definite integral \[\int\limits_{0}^{\pi /2}{\frac{\sin x}{1+\sin x+\cos x}dx}\]is equal to

A. \[\frac{1}{2}\log 2\]       
B. \[\frac{\pi }{2}-\log 2\]
C. \[\frac{\pi }{4}-\frac{1}{2}\log 2\]          
D. \[\frac{\pi }{2}+\log 2\]
Answer» D. \[\frac{\pi }{2}+\log 2\]
3048.

Let \[f(0)=0\] and \[\int\limits_{0}^{2}{f'(2t){{e}^{f(2t)}}dt=5}\]. Then the value of f(4) is

A. log 2                
B. log 7
C. log 11   
D. log 13
Answer» D. log 13
3049.

  \[\int \frac{dx}{\cos x+\sqrt{3}\sin x}\] is equal to

A. \[\frac{1}{2}\log \,\tan \left( \frac{x}{2}+\frac{\pi }{12} \right)+c\]
B. \[\frac{1}{2}\log \,\,\tan \left( \frac{x}{2}-\frac{\pi }{12} \right)+c\]
C. \[\log \,\,\tan \left( \frac{x}{2}+\frac{\pi }{12} \right)+c\]
D. \[\log \,\tan \left( \frac{x}{2}-\frac{\pi }{12} \right)+c\]
Answer» B. \[\frac{1}{2}\log \,\,\tan \left( \frac{x}{2}-\frac{\pi }{12} \right)+c\]
3050.

\[\int \frac{dx}{x({{x}^{n}}+1)}\] is equal to

A. \[\frac{1}{n}\log \left( \frac{{{x}^{n}}}{{{x}^{n}}+1} \right)+c\]
B. \[\frac{1}{n}\log \left( \frac{{{x}^{n}}+1}{{{x}^{n}}} \right)+c\]
C. \[\log \left( \frac{{{x}^{n}}}{{{x}^{n}}+1} \right)+c\]
D. none of these
Answer» B. \[\frac{1}{n}\log \left( \frac{{{x}^{n}}+1}{{{x}^{n}}} \right)+c\]