Ask a New Question
Search
Question
Prove :cosx-cosy= -2sin(x+y/2)sin(x-y/2)
Prove: 2cot-2tanx= 4-2sec^2x / tanx
Answers
Answers
2Sinx
Related Questions
Q.1 Prove the following identities:- (i) tan^3x/1+tan^2x + cot^3x/1+cot^2 = 1-2sin^x cos^x/sinx cos...
prove that cosx(tanx+2)(2tanx+1)=2secx+5sinx
Prove the following identity: 1/tanx + tanx = 1/sinxcosx I can't seem to prove it. This is my...