sin a upon 1 + cos A is equal to cosec a minus cot a
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How to prove cot A+cosec A -1/cot A -cosec A+1 =1+cos A/sin A - Quora
08-Apr-2018 · 4 answers
+cot A/ (1-tan A) =1+sec A cosec A - Quora
24-Jan-2017 · 15 answers
How to prove that (cosec A-sin A) (sec A- cos A) =1/tan A+ cot A ...
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