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Find the derivatives of the function f(y)= sinh(sinh(7y).

3 answers

recall d(sinh(x)/dx = cosh(x)

so if
y = sinh(sinh(x))
dy/dx = cosh(sinh(x) * cosh(x)
= cosh(x) (cosh(sinh(x) )
so f ' (y) = 7 cosh(7y) (cosh(sinh(7y) )
thank you
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