5. (a) Find the exact value of sin (20) given that sin (0) = 3/5 and 0 is in quadrant II. (b) If cos (20) = 3/5 and 0 ≤ 0 ≤ T/4, find the values of i. sin (20) ii. cos (0) iii. sin (0)

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A: Solution of the problem as follows

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