જો $y=f(\cosh x)$ અને $f^{\prime}(x)=\log \left(x+\sqrt{x^2-1}\right)$ હોય, તો $\frac{d^2 y}{d x^2}=$

  • A
    $\sinh x + x \cosh x$
  • B
    $x \sinh x$
  • C
    $\log \left(x+\sqrt{x^2+1}\right)$
  • D
    $\frac{x}{\sqrt{x^2-1}}$

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Similar Questions

ધારો કે $f$ એ બે વાર વિકલનીય વિધેય છે જેથી $f^{\prime \prime}(x) = -f(x)$,$f^{\prime}(x) = g(x)$ અને $h(x) = (f(x))^2 + (g(x))^2$ થાય. જો $h(5) = 1$ હોય,તો $h(10)$ ની કિંમત શોધો.

જો $y=a \sin x+(5+2 x) \cos x$ હોય,તો $y^{\prime \prime}+y=$

જો $x^{2} y^{5}=(x+y)^{7}$ હોય,તો $\frac{d^{2} y}{d x^{2}}$ ની કિંમત શોધો.

જો $f(x)=\frac{x-1}{e^x}$ હોય, તો $f^{\prime}(0)+f^{\prime \prime}(0)=$

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

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