Find the derivatives of the following functions and please show all steps:
(a) f(x) = (x-1)^3 . e^4^x
(b) y = x^3 ln(x^2 +1)
(c) y = e^2^x + e ^-2^x over X
"c" function reads as "e squared x plus e negative squared x over X. System did not allow me to write a line as a fraction.
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