Find the value of [(sinA + cosA)² − (sinA − cosA)²] / [(1 + sinA)(1 − cosA) − (sinA − cosA) − 1].

Subject: Mathematics | Topic: Trigonometry | Difficulty: MEDIUM

Options

1. (A) -3
2. (B) 4
3. (C) -4
4. (D) 3

Verified Answer

Option (C): -4

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