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If y=e^(acos^(-1)x) , -1lt=xlt=1 , show ...

If `y=e^(acos^(-1)x)` , `-1lt=xlt=1` , show that
`(1-x^2)` `(d^2y)/(dx^2)-x(dy)/(dx)-a^2y=0` .

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RD SHARMA ENGLISH-HIGHER ORDER DERIVATIVES-All Questions
  1. If y=e^x(sinx+cosx) prove that (d^2y)/(dx^2)-2(dy)/(dx)+2y=0 .

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

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

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

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  5. If x=2cost-cos2t ,\ \ y=2sint-sin2t , find (d^2y)/(dx^2) at t=pi/2 .

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  6. If x=4z^2+5,\ \ y=6z^2+7z+3, find (d^2y)/(dx^2) .

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  7. If y=log(1+cosx) , prove that (d^3y)/(dx^3)+(d^2y)/(dx^2)dot(dy)/(dx)=...

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  8. If y=sin(logx) , prove that x^2(d^2y)/(dx^2)+x(dy)/(dx)+y=0 .

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  9. If y=3\ e^(2x)+2\ e^(3x) , prove that (d^2y)/(dx^2)-5(dy)/(dx)+6y=0 .

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  10. If y=(cot^(-1)x)^2 , prove that y2(x^2+1)^2+2x(x^2+1)y1=2 .

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  11. If y="cosec"^(-1)x ,\ \ x >1 , then show that x(x^2-1)(d^2y)/(dx^2)+(2...

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  12. If x=cost+logtan(t/2),\ \ y=sint , then find the value of (d^2y)/(dt^2...

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  13. If x=asint and y=a(cost+logtan(t/2)) , find (d^2y)/(dx^2) .

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  14. If x=a(cost+tsint) and y=a(sint-tcost) , then find the value of (dy)...

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  15. If x=a(cost+logtan(t/2)) , y=asint , evaluate (dy)/(dx) .

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  16. If x=a(cos2t+2tsin2t) and y=a(sin2t-2tcos2t) , then find (dy)/(dx) .

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  17. If x=asint-bcost ,\ \ y=acost+bsint ,find (dy)/(dx) .

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  18. Find A\ a n d\ B so that y=Asin3x+Bcos3x satisfies the equation (d^2y)...

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  19. If y=A e^(-k t)cos(p t+c), then prove that (d^2y)/(dt^2)+2k(dy)/(dx)+n...

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  20. If y=acos(logx) , find (dy)/(dx) .

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