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Question: Apply and Derivative Question- First Year University Help

Question:Apply and Derivative Question- First Year University Help

Voltageist 15
student
September 21 2014
1

g := (1/8)*x*sin(13/x)+arcsin(5*x^2/(8*x^2+1))

G := unapply(g, x)

H(x) :=G(G(x))

 

I need to find the value of H'(pi/2). I tried this, but it didn't work;

simplify(eval(diff(H(x), x), x = (1/2)*Pi))

 

Will it not work for this type of question? 

Thanks :)
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