Find the derivative. 4 20) f(x) = 4 2 ,find f'(x) + 4 10 2 B) - x3/2 x2 x4 4 10 A) x1/2 x2 x6 4 10 4 10 x2 x4 D) x3/2 ° x² 21) f(x) = 5x2 - 7x + 2, find f'(x) 22) f(x) = 9x7/5 - 5x2 + 104, find f'(x)

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