Mathematics · Trigonometry
The expression (1 - sin A + cos A)2 is equal to which of the following?
- 12(1 - cos A)(1 - sin A)
- 22(1 + cos A)(1 - sin A)✓
- 32(1 + sin A)(1 + cos A)
- 42(1 - cos A)(1 + sin A)
Correct answer
2(1 + cos A)(1 - sin A)
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