Mathematics · Trigonometry
The expression sin4θ + cos4θ is identically equal to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12 sin2θ cos2θ
- 21 - sin2θ cos2θ
- 31 - 2 sin2θ cos2θ✓
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Correct answer
1 - 2 sin2θ cos2θ
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