SOLUTION: sec x - sin x tan x = cos x

SOLUTION: sec x - sin x tan x = cos x

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Question 283917: sec x - sin x tan x = cos x
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Almost right, but not quite. You say that the left hand side is equal to the right hand side. In fact the two sides are identical, and you should have asked for someone to prove the identity.

So your statement becomes:

Multiplying both sides by

:

Which is to say

for which you should already have proved the theorem.

John

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