Math, asked by fatimatanwir123, 7 months ago

Date
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24
(1-sinA + cosA)²

Answers

Answered by anindya20

1

Step-by-step explanation:

(1-sinA - cos A)²

(1-sinA)²+cos²A-2(1-sinA)

1+sin²A - 2 sinA + cos²A - 2(1-sinA).cos A

1+1 - 2 sinA - 2 (1-sinA). cos A

2- 2 sinA - 2 ( 1-sinA). Cos A

2(1-sinA) -2 ( 1- sinA) . cos A

2(1-sinA) (1-cos A)

( proved)

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