Prove cos2x-cos2y/cos2x+cos2y=tan(x+y)tan(y-x)
Similar Questions
-
-
0 answers
-
-
1 answer
-
-
1 answer
-
Prove:sin2x / 1 - cos2x = cotx My Attempt: LS: = 2sinxcosx / - 1 - (1 - 2sin^2x) = 2sinxcosx / - 1 + 2sin^2x = cosx / sinx - 1 =
-
5 answers
more similar questions