Math, asked by pranaysinkar03, 1 month ago

(sec A + tan A) (1 - sin A) = ?

Answers

Answered by Anonymous

0

Answer:

COS A

Step-by-step explanation:

Answered by usernametaken8

2

Step-by-step explanation:

(secA + tanA)(1 - sinA)

= (1/cosA + sinA/cosA)(1- sinA)

= (1 + sinA)(1 - sinA)/cosA

= (1 - sin²A)/cosA

Because, sin²A + cos²A = 1, (1 - sin²A) = cos²A

= cos²A/cosA = cosA

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