Theory of Intelligence
11TH•Mathematics•Trigonometric Identities•Question 15

(iv)

Express the following in the form $r\sin(\theta + \phi)$ or $r\sin(\theta - \phi)$ where terminal sides of the angles of measures $\theta$ and $\phi$ are in the first quadrant:

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(iv)

8sin⁡θ−6cos⁡θ8\sin\theta - 6\cos\theta

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