SOLUTION: Prove identity using proper form cotxsinx=cosx

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Question 666369: Prove identity using proper form
cotxsinx=cosx
Found 2 solutions by swincher4391, DrBeeee:
Answer by swincher4391(1107) About Me  (Show Source):
Answer by DrBeeee(684) About Me  (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.