If sinA + cosA = m, find the value of sin⁴A + cos⁴A. [Fractions in stacked form in the source]

Subject: Mathematics | Topic: Trigonometry | Difficulty: MEDIUM

Options

1. (A) 1 − (1 − m²)²/2
2. (B) 1 − (1 − m²)/2
3. (C) 1 + (1 − m²)/2
4. (D) 1 + (1 − m²)²/2

Verified Answer

Option (A): 1 − (1 − m²)²/2

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