SOLUTION: Prove identity using proper form cotxsinx=cosx

Question 666369: Prove identity using proper form
cotxsinx=cosx
Found 2 solutions by swincher4391, DrBeeee:
Answer by swincher4391(1107) (Show Source): You can put this solution on YOUR website!

Answer by DrBeeee(684) (Show Source): You can put this solution on YOUR website!
If we can start with an easily proven identity
(1) tan(x) = sin(x)/cos(x), we can use the definition of
(2) cot(x) = 1/tan(x) to get
(3) tan(x) = 1/cot(x) or
(4) sin(x)/cos(x) = 1/cot(x) by continuation, and by cross multiplying
(5) cot(x)*sin(x) = cos(x)
Note that in any of the above operations we cannot have any divisors equal to zero.
RELATED QUESTIONS
prove identity using proper form... (answered by mananth)
Prove the following identity:... (answered by Alan3354)
prove identity... (answered by MathLover1)
Cosx/1-sinx - sinx/cosx = 1/cosx Prove the... (answered by Alan3354)
Prove the identity: Cosx/1-sinx - sinx/cosx = 1/cosx (answered by Alan3354)
Prove the identity: (Cosx /1-sinx) - (cosx/1+sinx)... (answered by lwsshak3)
Prove the identity ; (Cosx / 1 -sinx) - ( cosx / 1 +sinx) = 2tanx (answered by Jc0110)
Prove the Identity: Tan^2x/ secx +1 = 1-cosx/ cosx (answered by ikleyn)
sin3x + cos3x ------------- = 1-sinxcosx sinx + cosx prove this... (answered by venugopalramana)