1.

Find the derivative x = 2 cos2 t/2.

Answer»

x = \(2cos^2(\frac t2)\) 

\(\frac{dx}{dt} = \) 2.2cos(t/2).(-sin(t/2)).1/2

 = -2 sin t/2 cos t/2

 = -sin t



Discussion

No Comment Found

Related InterviewSolutions