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If y=sin(sinx) , prove that (d^2y)/(dx^2...

If `y=sin(sinx)` , prove that `(d^2y)/(dx^2)+tanxdot(dy)/(dx)+y\ cos^2x=0` .

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To prove that \(\frac{d^2y}{dx^2} + \tan x \cdot \frac{dy}{dx} + y \cos^2 x = 0\) for \(y = \sin(\sin x)\), we will follow these steps: ### Step 1: Find the first derivative \(\frac{dy}{dx}\) Given: \[ y = \sin(\sin x) \] ...
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RD SHARMA-HIGHER ORDER DERIVATIVES-Solved Examples And Exercises
  1. If x=a(1+costheta) , y=a(theta+sintheta) , prove that (d^2y)/(dx^2)=(-...

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  2. If x=costheta , y=sin^3theta , prove that y\ (d^2y)/(dx^2)+((dy)/(dx))...

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  3. If y=sin(sinx) , prove that (d^2y)/(dx^2)+tanxdot(dy)/(dx)+y\ cos^2x=0...

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  4. If x=sint ,y=sinp t ,"p r o v et h a t" (1-x^2)(d^2y)/(dx^2)-x(dy)/...

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  5. If y=(sin^(-1)x)^2 , prove that (1-x^2)y2-x y1-2=0 .

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  6. If y=e^tan^((-1)x) , prove that (1+x^2)y2+(2x-1)y1=0 .

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  7. If y=3cos(logx)+4sin(logx),\ prove that x^2y2+x\ y1+y=0 .

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  8. If y=e^(2x)(a x+b) , show that y2-4\ y1+4\ y=0 .

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  9. If x=sin(1/alogy) , show that (1-x^2)y2-x\ y1-a^2\ y=0 .

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  10. If logy=tan^(-1)x , show that (1+x^2)y2+(2x-1)y1=0 .

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  11. If y=tan^(-1)x , show that (1+x^2)(d^2y)/(dx^2)+2x(dy)/(dx)=0 .

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  12. If y={log(x+sqrt(x^2+1))}^2 , show that (1+x^2)(d^2y)/(dx^2)+x(dy)/(dx...

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  13. If y=(tan^(-1)x)^2 , then prove that (1+x^2)^2\ y2+2x\ (1+x^2)y1=2 .

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  14. If y=cotx show that (d^2y)/(dx^2)+2y(dy)/(dx)=0 .

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  15. Find (d^2y)/(dx^2) , where y=log((x^2)/(e^2)) .

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  16. If y=a e^(2x)+b e^(-x) , show that, (d^2y)/(dx^2)-(dy)/(dx)-2y=0 .

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  17. If y=e^x(sinx+cosx) prove that (d^2y)/(dx^2)-2(dy)/(dx)+2y=0 .

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  18. If y=cos^(-1)x , find (d^2y)/(dx^2) in terms of y alone.

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  19. If y=e^acos^((-1)x) , -1lt=xlt=1 , show that (1-x^2) (d^2y)/(dx^2)-x(d...

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  20. If y=500\ e^(7x)+600\ e^(-7x) , show that (d^2y)/(dx^2)=49\ y .

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