IIT-JEE
Exam
Prove that , cos 510 cos330 +sin 390 cos 120
= –1
Read Solution (Total 0)
IIT-JEE Other Question
Find the value of the following trigonometric
ratios -
(a) cos (–45) (b) sin (–30)
(c) cot (–60)
prove:
sin (A + B) =sin A cos B + cos A sin B