Question

find dy/dt if y=cos(5-3t)

Answer 1

y = cos (5 - 3t)

Differentiating both sides w.r.t. t, we get

dy/dt = d [ cos(5 - 3t) ] / dt

differentiation of cos x is = - sin x

So,

dy/dt = - sin (5 - 3t) X (-3)

[ differentiation of (5 - 3t) is -3], so we apply chain rule]

dy/dt = 3 sin (5 - 3t)

Answer 2

Answer:

this is the ans of this question.