Prove that 1- A - 1- A-sin - 2 A - 1-cos A

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Standard Values of Trigonometric Ratios

Prove that 1+...

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Prove that
1+cotA/1-secA=sin^2A/1-cosA

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(1 + cot A + tan A) (sin A - cos A) = \frac{sec A}{{csc}^{2} A} - \frac{csc A}{sec^{2} A}

\frac{cos A}{1 + sin A} + \frac{1 + sin A}{cos A} = 2 sec A

\frac{sin A}{1 + cos A} + \frac{1 + cos A}{sin A} = 2 csc A

\frac{cos A + sin A - 1}{cos A - sin A + 1} = \frac{1}{cosec A + cot A}

{cosec}^{2} A - {cot}^{2} A = 1.

prove that (1+cotA+tanA)(sinA-cosA)=(secA/cosec^2A)-(cosecA/sec^2A)

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