What is the expression for \( \sin 3A \)?
University of Ilorin MTH101 android past question
- \( 3 \sin A - 4 \sin^3 A \)
- \( 4 \sin^3 A - 3 \sin A \)
- \( \sin A \cos^2 A \)
- \( 3 \cos A - \sin A \)
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