Question: 4 Given that sin a and cos b 7 find the exact values of sin a b and cos a b Step 1 Since sin

4 Given that sin a and cos b 7 find the

4 Given that sin a and cos b 7 find the exact values of sin a b and cos a b Step 1 Since sin a cos a Step 2 Since cos b sin b Step 3 cos a b 4 4 7 4 74 with a and b both in the interval and a in the interval 72 2 T and b in the interval 2 7 9 J 2

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