identity problem

Asked by vshrikanth | 1st Sep, 2010, 12:20: PM

Expert Answer:

(1 - cos x)2 = 1 - 2cos x + cos2x = sin2x + 2cos2x - 2cos x = sin2x + 2cos x(cos x - 1).
Regards,
Team,
TopperLearning.

Answered by  | 1st Sep, 2010, 01:24: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.