Math, asked by bagulsonali07, 2 months ago

cot A upon 1 - cot A + tan A upon 1 - tan A = -1

Answers

Answered by sandy1816

$\frac{cotA}{1 - cotA} + \frac{tanA}{1 - tanA} \\ = \frac{cosA}{sinA - cosA} + \frac{sinA}{cosA - sinA} \\ = \frac{cosA}{sinA - cosA} - \frac{sinA}{sinA - cosA} \\ = - ( \frac{sinA - cosA}{sinA - cosA} ) \\ = - 1$

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cot A upon 1 - cot A + tan A upon 1 - tan A = -1​

Answers

cot A upon 1 - cot A + tan A upon 1 - tan A = -1