Q. 9 E4.0( 26 Votes )

Find the derivati

Answer :

Let f(x) =


By product rule,





= x-4 (20x-6) + (3 – 4x-5)(-4x-5)


= 20x-10 – 12x-5 + 16x-10


f’(x) = 36x-10 – 12x-5


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