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Use the technique of log- arithmic differentiation and the properties of lnx and ex to find...

Use the technique of log- arithmic differentiation and the properties of lnx and ex to find the derivative of the following functions. Show your work, and simplify your answer.

(a) y=(1+x^2)^sinx

(b) y = {(2x−11)^7/2 * (x+3)^2} / {(x2 +1)^3}

(c) y = 5x^5*5^x

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