SOLUTION: PROVE: (Solve only one side until it matches the other)
[(sinA)/(cosA)][(1-sinA)/(cosA)]=1
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Question 713804: PROVE: (Solve only one side until it matches the other)
[(sinA)/(cosA)][(1-sinA)/(cosA)]=1
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The two sides are NOT identical, in fact they are NEVER equal.
Attempt to solve the equation:
\ -\ \sin^2(A)}{\cos^2(A)}\ =\ 1)
\ -\ \sin^2(A)\ =\ \cos^2(A))
Using the Pythagorean Identity:
\ -\ \sin^2(A)\ =\ 1\ -\ \sin^2(A))
Which is to say
\ =\ 1)
then
\ =\ \frac{\pi}{2})
But 
is excluded from the domain of the original equation. Therefore, there are no real number solutions to the given equation and given that infinite number of counterexamples, the original equation is not an identity.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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