Mathematics · Trigonometry
Find the value of cos2(48°) - sin2(12°), given that sin(18°) = √5 - 14.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-√5 - 18
- 2√5 + 18✓
- 3√5 - 18
- 4-√5 + 18
Correct answer
√5 + 18
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