17. If tan y = 3 tan x, prove that tan (x + y) =
2 sin 2 y
1 + 2 cos 2 y
Answers
Answered by
0
Step-by-step explanation:
hhdjxjdjdjsjjdjdjjfjfjfjjfjffjjfjfjjfjfjjfjkfjfjfjjfjfjfjjfjfjfjjjffjjfjfjfjjffjfjjfjjfjfjfjfjjfjjfjjjfjfjjfjfjjfjfjjfjfjjfjfjfjjfjjjjfjjfjfjjfjjfjfjjfjfjfjfjjfjfjjfjffjfjfjjfjfjrjjrjrjrjjrjrjjrjrjrjjrjfjjfjfjfjjfjfjfjjfjfjfjfjf
Similar questions