જો $y=a \cos (\log x)+b \sin (\log x)$ હોય,તો $x^2 y_2+x y_1=$

  • A
    $0$
  • B
    $y$
  • C
    $2 y$
  • D
    $-y$

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Similar Questions

જો $y^{2}=a x^{2}+b x+c$,જ્યાં $a, b, c$ અચળાંકો છે,તો $y^{3} \frac{d^{2} y}{d x^{2}}$ કોના બરાબર છે?

જો $y = \operatorname{Sec}^{-1} x$ હોય,તો $\frac{d^2 y}{d x^2} = $

જો $f(x)=\tan ^{-1}\left[\frac{\log \left(\frac{e}{x^{2}}\right)}{\log \left(e x^{2}\right)}\right]+\tan ^{-1}\left[\frac{3+2 \log x}{1-6 \log x}\right]$ હોય,તો $f^{\prime \prime}(x)$ ની કિંમત કેટલી થાય?

જો $y = \frac{A}{x} + B x^2$ હોય,તો $x^2 \frac{d^2 y}{d x^2} =$

જો ${x^p}{y^q} = {(x + y)^{p + q}}$,તો $\frac{{{d^2}y}}{{d{x^2}}} = $

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