Question

(Sec A+tan A) (1- Sin A) =​

Answer 1

Answer:

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Answer 2

Answer:

Cos A

Step-by-step explanation:

$= > (sec a + tan \: a)(1 - sin a) \\ \\ = > ( \frac{1}{cosa} + \frac{sina}{cosa} )(1 - sina) \\ \\ = > \frac{(1 + sina)(1 - sina)}{cosa} \\ \\ = > \frac{1 - {sin}^{2}a }{cosa} \\ \\ = > \frac{ {cos}^{2}a }{cosa} \\ \\ = > cosa$