If $$x=( sqrt2+1)^{1 over3} $$, the value of $$(x^3-{1 over {x^3}}) $$ – McqOptions

MCQOPTIONS

1.	If $$x=( sqrt2+1)^{1 over3} $$, the value of $$(x^3-{1 over {x^3}}) $$ is
A.	0
B.	$$- sqrt { 2} $$
C.	2
D.	$$3 sqrt { 2} $$
Answer» D. $$3 sqrt { 2} $$

Discussion

No Comment Found

Related MCQs

<p>If $$ {a^{x}={(x+y+z)^{y}}}, a^{y}=(x+y+z)^{z} and a^{z}=(x+y+z)^{x}$$ then the value of (x +y +z) is</p>
<p>If a =500, b=502 and c=504, then the value of a<sup>3</sup> +b<sup>3</sup> +c<sup>3</sup>-3abc</p>
<p>If $$ {8x over{2x^{2}+7x-2}}=1, x>0,$$ then what is the value of of $$ {x^{3}+{1 over x^{3}}}$$ ?</p>
<p>If x+y=10 and xy=4, then what is the value of x<sup>4</sup>+y<sup>4</sup>=?</p>
<p>If $$ m+{1 over m-2}=0$$ then the value of $$ (m-2)^{12}+{1 over{(m-2)}^{12}} $$ is.</p>
<p>If x + y = 1 and xy (xy 2) = 12,then the value of x<sup>4</sup> + y<sup>4</sup> is:</p>
<p>If (27x<sup>3</sup> 343y<sup>3</sup>) (3x 7y) = Ax<sup>2</sup> +By<sup>2</sup> + 7Cyx, then the value of (4A B +5C) is:</p>
<p>Which of these options is correct?</p>
<p>2x+3y=10 has?</p>
<p>If $$ x= sqrt{ sqrt{5}+1 over { sqrt{5}-1}}$$ then the value of $$ {5x^2-5x-1}$$ will be:</p>