Asked by Alip

Sin a cos a(tan a+cot a)
Answered by collins
do you want to simplify?
sinacosa(sina/cosa+cosa/sina)
sinacosa[(sina)^2+(cosa)^2]/sinacosa
(sina)^2+(cosa)^2.........
Answered by Reiny
sinacosa(sina/cosa + cosa/sin)
= sin^2 a + cos^2 a
= 1
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