જો $y = \log(\cosh x)$ હોય,તો $\frac{d^2 y}{d x^2} = $

  • A
    $\operatorname{sech}^2 x$
  • B
    $-\operatorname{sech}^2 x$
  • C
    $\sinh x$
  • D
    $-\sinh x$

Explore More

Similar Questions

જો $f(x)$ એવું વિધેય હોય કે જેથી $f^{\prime \prime}(x)+f(x)=0$ અને $g(x)=[f(x)]^{2}+[f^{\prime}(x)]^{2}$ તથા $g(3)=8$ હોય,તો $g(8)$ ની કિંમત કેટલી થાય?

જો ${y^2} = p(x)$ એ ત્રણ ઘાતવાળી બહુપદી હોય,તો $2{d \over {dx}}\left\{ {{y^3}.{{{d^2}y} \over {d{x^2}}}} \right\} =$

જો $y=x \log \left(\frac{1}{a x}+\frac{1}{a}\right)$ હોય,તો $x(x+1) \frac{d^2 y}{d x^2}+x \frac{d y}{d x}-y=$

જો $y = \sin(\log_e x)$ હોય, તો $x^2 \frac{d^2 y}{dx^2} + x \frac{dy}{dx}$ ની કિંમત શોધો.

જો $y = \frac{(\sin^{-1} x)^2}{2}$ હોય, તો $(1-x^2) y_2 - x y_1 = $

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