SOLUTION: tan theta*cot theta=1,is it true when theta =90 degree

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Question 961083: tan theta*cot theta=1,is it true when theta =90 degree
Answer by amarjeeth123(573) About Me  (Show Source):
You can put this solution on YOUR website!
When theta =90 degree cot theta=infinity.
So the expression is false for theta =90 degree.