Calculus

Given f(3)=4 and f'(3)=5, find g'(3),
where g(x)=8x.f(x)

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  1. g' = 8f + 8x * f'
    g'(3) = 8f(3) + 24*f'(3)
    = 8*4 + 24*5
    = 152

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