Question: Differentiate with respect to x: (a) sinh 3x (b) tanh 4x (c) x 3 cosh 2x (d) ln(cosh 1/2x) (e) cos x cosh x (f)

Differentiate with respect to x:

(a) sinh 3x 

(b) tanh 4x 

(c) x3cosh 2x

(d) ln(cosh 1/2x) 

(e) cos x cosh x 

(f) 1/cosh x

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