यदि $y = 1 + x + x^2 + x^3 + . . . + \infty$ और $|x| < 1$ है,तो $y^{\prime \prime} =$

  • A
    $2 y y^{\prime}$
  • B
    $\frac{2 y}{y^{\prime}}$
  • C
    $\frac{y^{\prime}}{2 y}$
  • D
    $2 y^2 y^{\prime}$

Explore More

Similar Questions

यदि $y=2 \cos (2 \log x)+3 \sin (2 \log x)$ है, तो $x^2 y^{\prime \prime}+x y^{\prime}+2 y=$

यदि $f(x) = \sin x + \cos x$ है, तो $f\left(\frac{\pi}{4}\right) f^{(iv)}\left(\frac{\pi}{4}\right)$ का मान ज्ञात कीजिए।

यदि $x+1=e^{-y}$ है,तो $\frac{d^2 y}{d x^2} = $ . . . . . .

यदि $f(x)=x^3-x^2 f^{\prime}(1)+x f^{\prime \prime}(2)-f^{\prime \prime \prime}(3), x \in R$ है,तो

यदि $y=ax^{n+1}+b x^{-n}$ है,तो $x^2 \frac{d^2 y}{d x^2}=$

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