Q. If 3cos2x - 2sin2x = -0.75 and 0°⩽ x ⩽ 90°, then x = ?
A) 90 deg
B) 30 deg
C) 45 deg
D) 60 deg
✔ Correct Answer: 60 deg
Exam Insight
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A) 90 deg
B) 30 deg
C) 45 deg
D) 60 deg
✔ Correct Answer: 60 deg
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