trigono

Asked by poojathally | 18th Feb, 2010, 02:35: PM

Expert Answer:

Given cos A =3/5  So Sin A = 4/5

 

16 cot2 A – 1 = 16 cos2A/sin2A= 16 (9/16)-1 = 8

Answered by  | 18th Feb, 2010, 02:45: PM

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