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Differentiate w.r.t. x the function x^x+...

Differentiate w.r.t. x the function `x^x+x^a+a^x+a^a ,` for some fixed `a" ">" "0" "a n d" "x" ">" "0` .

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  11. D(tan^(-1)x+tan^(-1)(1/x))=

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  15. If f(x)=sin^(-1)((2^(x+1))/(1+4^x)) , find f^(prime)(0) .

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  16. If y=sin^(-1)[xsqrt(1-x)-sqrt(x)sqrt(1-x^2]) and 0 < x < 1, then find...

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