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?

  • A
    $0$
  • B
    $3$
  • C
    $5$
  • D
    $8$

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જો $y=44 x^{45}+45 x^{-44}$ હોય,તો $y^{\prime \prime}=$

વિધેય $f(x) = x^{2} + 3x + 2$ નું દ્વિતીય વિકલિત શોધો.

જો $y = (\cos^{-1} x)^2$ હોય,તો $(1-x^2) y_2 + p x y_1 + q = 0$ થાય. $p+q$ ની કિંમત શોધો.

જો $y=\frac{2}{\sqrt{a^2-b^2}} \tan ^{-1}\left[\sqrt{\frac{a-b}{a+b}} \tan \frac{x}{2}\right]$ હોય,તો $\left.\frac{d^2 y}{d x^2}\right|_{x=\frac{\pi}{2}}=$

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