Mathematics · Trigonometry
What is the value of 3 sin2 30° + 35 cos2 60° − 2 sec2 45° ?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1−2517
- 2−3110✓
- 3−58
- 4−52
Correct answer
−3110
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