172 + Mcqs in Trigonometric Functions McqOptions

1.	The declaration void function1(int) indicates the function1 is a function which
A.	Has no arguments
B.	Returns nothing
C.	Both (a) and (b)
D.	None of these
Answer» C. Both (a) and (b)

Discussion

2.	What is the format identifier for “static a = 20.5;”?
A.	%s
B.	%d
C.	%f
D.	Illegal declaration due to absence of data type
Answer» C. %f

Discussion

3.	In a conditional inclusion, if the condition that comes after the if holds.
A.	Then the code up to the following #else or #elif or #endif is compiled
B.	Then the code up to the following #endif is compiled even if #else or #elif is present
C.	Then the code up to the following #eliif is compiled
D.	None of the mentioned
Answer» B. Then the code up to the following #endif is compiled even if #else or #elif is present

Discussion

4.	Automatic variables are initialised to
A.	Zero
B.	Junk value
C.	Nothing
D.	Both Zero & Junk value
Answer» C. Nothing

Discussion

5.	The function fprintf is used in a program
A.	When too many printf calls have been alrady used in the program
B.	In place of printf, since printf uses more memory
C.	When output i to be printed on to a file
D.	All of above
Answer» D. All of above

Discussion

6.	Automatic variables are allocated space in the form of a:
A.	stack
B.	queue
C.	priority queue
D.	random
Answer» B. queue

Discussion

7.	The scope of an automatic variable is:
A.	Within the block it appears
B.	Within the blocks of the block it appears
C.	Until the end of program
D.	Within the block it appears & Within the blocks of the block it appears
Answer» E.

Discussion

8.	Default storage class if not any is specified for a local variable, is auto
A.	true
B.	false
C.	Depends on the standard
D.	None of the mentioned
Answer» B. false

Discussion

9.	Register variables reside in
A.	stack
B.	registers
C.	heap
D.	main memory
Answer» C. heap

Discussion

10.	What is the return-type of the function sqrt() ?
A.	int
B.	float
C.	double
D.	depends on the data type of the parameter
Answer» D. depends on the data type of the parameter

Discussion

11.	How many type of conversion are there in C?
A.	1
B.	2
C.	3
D.	4
Answer» C. 3

Discussion

12.	Automatic variables are variables that are
A.	Declared within the scope of a block, usually a function
B.	Declared outside all functions
C.	Declared with auto keyword
D.	Declared within the keyword extern
Answer» B. Declared outside all functions

Discussion

13.	Pick the correct statements
A.	The body of a function should have only one return statement
B.	The body of a function may have many return statements
C.	A function can return only one value to the calling environment
D.	Both (b) & (c)
Answer» E.

Discussion

14.	The variable declaration with no storage class specified is by default:
A.	auto
B.	extern
C.	static
D.	register
Answer» B. extern

Discussion

15.	C preprocessor is conceptually the first step during compilation
A.	true
B.	false
C.	Depends on the compiler
D.	Depends on the standard
Answer» B. false

Discussion

16.	Automatic variables are stored in
A.	stack
B.	data segment
C.	register
D.	heap
Answer» B. data segment

Discussion

17.	Which of the following function calculates the square of 'x' in C?
A.	sqr(x)
B.	pow(2, x)
C.	pow(x, 2)
D.	power(2, x)
Answer» D. power(2, x)

Discussion

18.	For each #if, #ifdef, and #ifndef directive
A.	There are zero or more #elif directives
B.	Zero or one #else directive
C.	One matching #endif directive
D.	All of the mentioned
Answer» E.

Discussion

19.	Which of the following is not a primitive recursive but partially recursive?
A.	Carnot's function
B.	Ricmaan function
C.	Both (a) and (b)
D.	Ackermann's function
Answer» E.

Discussion

20.	max is a function that returns the larger of the two integers, given as arguments. Which of the following statements finds the largest of three given numbers?
A.	max (max (a, b), max (a, c))
B.	max(b, max(a, c) )
C.	max (max (a, b). max ( b, c ))
D.	All of the above
Answer» E.

Discussion

21.	What is the output of this C code? include void m() { printf("hi"); } void main() { m(); }
A.	hi
B.	Run time error
C.	Nothing
D.	Varies
Answer» B. Run time error

Discussion

22.	What is the output of this C code?
A.	Compile time error as foo is local to main
B.	1 2
C.	2 1
D.	Compile time error due to declaration of functions inside main
Answer» C. 2 1

Discussion

23.	Cos728° =
A.	−cos8°
B.	−sin8°
C.	sin8°
D.	cos8°
Answer» E.

Discussion

24.	Sin5θcos2θ =
A.	1/2[sin7θ+sin3θ]
B.	[sin7θ+sin3θ]
C.	1/2[sin7θ-sin3θ]
D.	None of Above
Answer» B. [sin7θ+sin3θ]

Discussion

25.	Sin(-625) =
A.	−cos5°
B.	cos5°
C.	sin5°
D.	−sin5°
Answer» C. sin5°

Discussion

26.	Sin(A+45°)sin(A-45°) =
A.	−1/2cos(2A)
B.	−1/2sin(2A)
C.	−1/2sin(2A)
D.	None of Above
Answer» B. −1/2sin(2A)

Discussion

27.	Cos(π+α) =
A.	cosα
B.	−cosα
C.	−sinα
D.	sinα
Answer» C. −sinα

Discussion

28.	If tanθ < 0, sinθ < 0, then terminal arm of angle lies in quadrant
A.	1
B.	2
C.	3
D.	4
Answer» B. 2

Discussion

29.	Cosθ + cosπ =
A.	−2sin(θ + π/2)sin(θ-π/2)
B.	−2sin(θ + π/2)sin(θ-π/2)
C.	2cos(θ + π/2)cos(θ-π/2)
D.	None of Above
Answer» D. None of Above

Discussion

30.	cotα-cotβ/1 + cotαcotβ
A.	cos15°
B.	cos15°
C.	−sin15°
D.	sin15°
Answer» E.

Discussion

31.	Tan(α + β) =
A.	tanα-tanβ/1 + tanαtanβ
B.	tanα+tanβ/1 - tanαtanβ
C.	cotα+cotβ/1-cotαcotβ
D.	cotα-cotβ/1 + cotαcotβ
Answer» C. cotα+cotβ/1-cotαcotβ

Discussion

32.	Cos3α =
A.	4sinα - 3sin³α
B.	4cos³α - 3cosα
C.	3cos³α - 4cosα
D.	3cos³α - 4cosα
Answer» B. 4cos³α - 3cosα

Discussion

33.	Period of cot(3x) is
A.	π/3
B.	π/2
C.	2π/3
D.	π
Answer» B. π/2

Discussion

34.	Domain of cscx is
A.	[-1 1]
B.	R
C.	R-{x\|x = (2n+1)π/2,nεZ}
D.	R-{x\|x = nπ,nεZ}
Answer» E.

Discussion

35.	Period of 15sin(x/15) is
A.	30π
B.	15π
C.	10π
D.	5π
Answer» B. 15π

Discussion

36.	Period of 3sin(3x) is
A.	π/3
B.	π/2
C.	2π/3
D.	π
Answer» D. π

Discussion

37.	Period of cos(2x) is
A.	π
B.	2π
C.	3π
D.	4π
Answer» B. 2π

Discussion

38.	Domain of cos(x) is
A.	[-1 1]
B.	R
C.	R-{0}
D.	R-{1}
Answer» C. R-{0}

Discussion

39.	Period of tan(x/3) is
A.	π
B.	2π
C.	3π
D.	None of Above
Answer» D. None of Above

Discussion

40.	Domain of cot(x) is
A.	[-1 1]
B.	R
C.	R-{x\|x = (2n+1)π/2,nεZ}
D.	R-{x\|x = nπ,nεZ}
Answer» E.

Discussion

41.	Period of 3cot(x/3) is
A.	π
B.	2π
C.	2π
D.	4π
Answer» D. 4π

Discussion

42.	Range of cos(x) is
A.	[-1 1]
B.	R
C.	R
D.	R-{x\|x = nπ,nεZ}
Answer» B. R

Discussion

43.	Period of tan(2x) is
A.	π/3
B.	π/2
C.	2π/3
D.	2π
Answer» C. 2π/3

Discussion

44.	Domain of tan(x) is
A.	[-1 1]
B.	R
C.	R-{x\|x = (2n+1)π/2,nεZ}
D.	R-{x\|x = nπ,nεZ}
Answer» D. R-{x\|x = nπ,nεZ}

Discussion

45.	Period of cos(x) is
A.	π
B.	2π
C.	3π
D.	4π
Answer» C. 3π

Discussion

46.	Range of tan(x) is
A.	[-1 1]
B.	R
C.	R-{x\|x = (2n+1)π/2,nεZ}
D.	R-{x\|x = nπ,nεZ}
Answer» C. R-{x\|x = (2n+1)π/2,nεZ}

Discussion

47.	Period of cos(3x) is
A.	π/3
B.	π/2
C.	2π/3
D.	π
Answer» D. π

Discussion

48.	Period of sec(x) is
A.	π
B.	2π
C.	3π
D.	4π
Answer» C. 3π

Discussion

49.	Period of csc(x/3) is
A.	π
B.	2π
C.	3π
D.	6π
Answer» E.

Discussion

50.	Period of csc(2x) is
A.	π/3
B.	π/2
C.	2π/3
D.	π
Answer» D. π

Discussion

Explore topic-wise MCQs in Testing Subject.

The declaration void function1(int) indicates the function1 is a function which

What is the format identifier for “static a = 20.5;”?

In a conditional inclusion, if the condition that comes after the if holds.

Automatic variables are initialised to

The function fprintf is used in a program

Automatic variables are allocated space in the form of a:

The scope of an automatic variable is:

Default storage class if not any is specified for a local variable, is auto

Register variables reside in

What is the return-type of the function sqrt() ?

How many type of conversion are there in C?

Automatic variables are variables that are

Pick the correct statements

The variable declaration with no storage class specified is by default:

C preprocessor is conceptually the first step during compilation

Automatic variables are stored in

Which of the following function calculates the square of 'x' in C?

For each #if, #ifdef, and #ifndef directive

Which of the following is not a primitive recursive but partially recursive?

max is a function that returns the larger of the two integers, given as arguments. Which of the following statements finds the largest of three given numbers?

What is the output of this C code? include void m() { printf("hi"); } void main() { m(); }

What is the output of this C code?

Cos728&deg;&nbsp;=

Sin5&theta;cos2&theta;&nbsp;=

Sin(-625)&nbsp;=

Sin(A+45&deg;)sin(A-45&deg;)&nbsp;=

Cos(&pi;+&alpha;)&nbsp;=

If&nbsp;tan&theta;&nbsp;&lt;&nbsp;0,&nbsp;sin&theta;&nbsp;&lt;&nbsp;0,&nbsp;then&nbsp;terminal&nbsp;arm&nbsp;of&nbsp;angle&nbsp;lies&nbsp;in&nbsp;quadrant

Cos&theta;&nbsp;+&nbsp;cos&pi;&nbsp;=

cot&alpha;-cot&beta;/1&nbsp;+&nbsp;cot&alpha;cot&beta;

Tan(&alpha;&nbsp;+&nbsp;&beta;)&nbsp;=

&nbsp;Cos3&alpha;&nbsp;=

Period&nbsp;of&nbsp;cot(3x)&nbsp;is

Domain&nbsp;of&nbsp;cscx&nbsp;is

Period&nbsp;of&nbsp;15sin(x/15)&nbsp;is

Period&nbsp;of&nbsp;3sin(3x)&nbsp;is

Period&nbsp;of&nbsp;cos(2x)&nbsp;is

Domain&nbsp;of&nbsp;cos(x)&nbsp;is

Period&nbsp;of&nbsp;tan(x/3)&nbsp;is

Domain&nbsp;of&nbsp;cot(x)&nbsp;is

&nbsp;Period&nbsp;of&nbsp;3cot(x/3)&nbsp;is

Range&nbsp;of&nbsp;cos(x)&nbsp;is

Period&nbsp;of&nbsp;tan(2x)&nbsp;is

&nbsp;Domain&nbsp;of&nbsp;tan(x)&nbsp;is

&nbsp;Period&nbsp;of&nbsp;cos(x)&nbsp;is

Range&nbsp;of&nbsp;tan(x)&nbsp;is

Period&nbsp;of&nbsp;cos(3x)&nbsp;is

Period&nbsp;of&nbsp;sec(x)&nbsp;is

Period&nbsp;of&nbsp;csc(x/3)&nbsp;is

Period&nbsp;of&nbsp;csc(2x)&nbsp;is

Cos728° =

Sin5θcos2θ =

Sin(-625) =

Sin(A+45°)sin(A-45°) =

Cos(π+α) =

If tanθ < 0, sinθ < 0, then terminal arm of angle lies in quadrant

Cosθ + cosπ =

cotα-cotβ/1 + cotαcotβ

Tan(α + β) =

Cos3α =

Period of cot(3x) is

Domain of cscx is

Period of 15sin(x/15) is

Period of 3sin(3x) is

Period of cos(2x) is

Domain of cos(x) is

Period of tan(x/3) is

Domain of cot(x) is

Period of 3cot(x/3) is

Range of cos(x) is

Period of tan(2x) is

Domain of tan(x) is

Period of cos(x) is

Range of tan(x) is

Period of cos(3x) is

Period of sec(x) is

Period of csc(x/3) is

Period of csc(2x) is