if cos A =1/root 2,cot B = 1 find the value of sin(A+ B)

Asked by honey_physics | 16th Feb, 2010, 10:49: AM

Expert Answer:

cos A = 1/2 = cos45o

A = 45o

cot B = 1= cot45o

B = 45o

So, sin (A+B) = sin(45 + 45)o

Hence, sin 90o = 1

Answered by  | 16th Feb, 2010, 11:26: AM

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