Answers

2015-10-19T12:13:08+05:30

sin A =   \frac{1}{ \sqrt{1+ cot ^{2} A} }

cos A =  \frac{cot A}{ \sqrt{1+ cot^2 A} }

cosec A =  \sqrt{1+cot^2A}

sec A =  \frac{ \sqrt{1+cot^2A} }{cot A}

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