For the curve y = (2x + 1)^3 find the rate of change of slope at x = 1

y=2x+13On differentiating wrt x , we gety'=32x+12.2y'=62x+12Rate of change of slope at x=1y'=621+12=62+12=69=54   ANS...

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differentiate with respect to x and substitute x = 1
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