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8 July, 01:35

Use a cofunction identity to write an equivalent expression: sin (pi/6 - theta)

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  1. 8 July, 01:38
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    Sin (a-b) = (sin a * cos b) - (sin b * cos a)

    sin (pi/6 - theta) = (sin pi/6*cosФ) - (sinФ * cos pi/6) = 1/2 cos Ф - √3/2 sin Ф
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