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If y=|cosx|+|sinx| then what is (dy)/(dx...

If `y=|cosx|+|sinx|` then what is `(dy)/(dx)` at `x = (2pi)/3` ?

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SHARAM PUBLICATION-CONTINUITY AND DIFFERENTIABILITY-EXAMPLE
  1. What is the first derivative of cos^(-1) (sin(sqrt(1+x)/2))+x^x w.r.t ...

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  2. If f(x)=|logx| then for x!=1, then what is f'(x)?

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  3. If y=|cosx|+|sinx| then what is (dy)/(dx) at x = (2pi)/3 ?

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  4. If f(x)=logx^(2)(logx), then f(e)

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  5. If y = tan^(-1)[(x/log ex^3)] + tan^(-1)[(5 + 3logx)/(1-15logx)] then ...

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  6. If f(x) = a |sinx| + b.e^(|x|) + c |x|^3 and f(x) is differentiable at...

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  7. What is the value ofthe derivative of f(x)=|x-1|+|x-3| at x=2?

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  10. Differentiate a^(lnx) w.r.t x ^(2).

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  13. What is the derivative of sec^(-1)(1/(2x^2-1)),with respect to(sqrt(1...

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  14. If y=sec^(-1)((x+1)/(x-1))+sin^(-1)((x-1)/(x+1)), then find (dy)/(dx).

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  16. Differentiate cos^(-1)(sinx) w.r.t.x.

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  19. What is the derivative of sin^(-1)((2x)/(1+x^2)) w.r.t tan^(-1)((2x)/(...

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  20. Find d/(dx)cot^(-1) tan(pi/2-x).

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