If $x=(\sqrt{2}-1)^{-1/2},$ then the value of $\left(x^{2}-\frac{1}{x^{2}}\right)$ is

  • A
    $2$
  • B
    $-2\sqrt{2}$
  • C
    $2\sqrt{2}$
  • D
    $\sqrt{2}$

Explore More

Similar Questions

The denominator of a fraction is $3$ more than the numerator. If the numerator as well as the denominator is increased by $4,$ the fraction becomes $\frac{4}{5}$. What was the original fraction?

$3640 \div 14 \times 16 + 340 = ?$

If $(x + \frac{1}{x})^2 = 3$,then $(x^3 + \frac{1}{x^3})$ is equal to

Difficult
View Solution

For what value of $N$ will $270N$ be a perfect square,where $270N$ is a $4$-digit number?

The value of $\left(\frac{0.051 \times 0.051 \times 0.051 + 0.041 \times 0.041 \times 0.041}{0.051 \times 0.051 - 0.051 \times 0.041 + 0.041 \times 0.041}\right)$ is

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo