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If cos y = x cos(a+y) then prove that ...

If cos y = x cos(a+y) then prove that
`dy/dx = (cos^2(a+y))/sin a`

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SHARAM PUBLICATION-CONTINUITY AND DIFFERENTIABILITY-EXAMPLE
  1. If y=e^(sin^(-1)x) and u=logx then what is (dy)/(du)?

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  2. Find the slope of the tangent to the curve x=2(theta-sin2theta),y=2(...

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  3. If cos y = x cos(a+y) then prove that dy/dx = (cos^2(a+y))/sin a

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  4. Differentiate sec^(-1)((x+x^(-1))/(x-x^(-1))) w.r.tx.

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  5. Prove that y=tan(x+y), then (dy)/(dx)=(1+y^(2))/(-y^(2))

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  6. Find (dy)/(dx), if y=log(x^(2)) 3.

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  7. Find (dy)/(dx)when y=10^(sin x).

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  8. If F(x)= intx^(x^2)e^(-t^4) dt then find F^1(x).

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  9. If f(x) = sinx and g(x) = x^3 then find the value of[f (x).g (x)]^III ...

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  10. Find the derivative of sin^(-1)((2x^3)/(1+x^6)).

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  11. Find the derivative of tan^(-1)(cos^2x).

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  12. Examine the differentiability of ln x^(2) for all real values of x.

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  13. Find (dy)/(dx) when y=tan^(-1) ((4x)/(1+5x^2))+tan^(-1)((2+3x)/(3-2x)...

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  14. Differentiate sin^(-1) ((2X)/(1+X^(2))) with respect to cos^(-1) ((1-X...

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  15. Find (dy)/(dx) wheny=x^y.

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  16. If 2z=x(2+(dz)/(dx)), then prove that (d^(2)z)/(dx^(2)) is a constant.

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  17. If sin (x + y) = y cos (x + y) then prove that dy/dx =-(1 + y^2)/y^2

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  18. If e^(y//x)=(x)/(a+bx) then show that x^(3)(d)/(dx)((dy)/(dx))=(x(dy)/...

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  19. If (cosx)^(y)=(cosy)^(x), then find (dy)/(dx).

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  20. If x=sqrt(a^(sin^(-1)t)),y=sqrt(a^(cos^(-1)t)), then show that (dy)/(d...

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