If s = (2 + 3t)(5t - 4), find dydx d y d x when t = 45 4 5 sec

Question 1 Report

If s = (2 + 3t)(5t - 4), find $\frac{d y}{d x}$ when t = $\frac{4}{5}$ sec

0 units per sec.

15 units per seconds

22 units per seconds

26 units per seconds

Answer Details

s = (2 + 3t)(5t - 4), find $\frac{d y}{d x}$ when t = $\frac{4}{5}$ sec
= 10t - 8 + 15t2 - 12t
$\frac{d s}{d t}$ = 15t2 - 2t - 8
= 30t - 2 ; t = $\frac{4}{5}$
= 30t - 2
= 30 x $\frac{4}{5}$ - 2 $\to$ 24 - 2
= 22 sec

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Differentiation

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