Cos-1 (1 - a2/1 + a2) + cos-1 (1 - b2/1 + b2) = 2tan-1 (a + b/1 - ab)
Answers
Answered by
0
Answer:
Namo buddhay of a couple weeks and 6667766
Step-by-step explanation:
jjjiiru4 and it will not sure why the following
Similar questions