Transforming Log & Exp Equations: Differentiate wrt x

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Write the following log equations as exponential equations and vice-versa.
1.) ln 0.5 = - 0.6931

Differentiate with respect to x.
2.) y = e^x(sin x + cos x)
 
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You should post your homework in the Homework forum.

But your attempts?
 
thanks but how to post in homework forum? i am new in here
 

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