IB skill practice

Combine sinusoidal models with phase angle

Use coefficients of sine and cosine to find a phase angle.

Paper 1, Paper 2 5 marks Difficulty 5

Combine sinusoidal models with phase angle - depth scenario

For \( 4\sin x+4\cos x=R\sin(x+\alpha)\), find \(\alpha\) in degrees. Enter the requested value and choose the interpretation that matches the result.

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