2 Use the sum to product formulas to rewrite the sum or difference as a product sin 90 sin 70 O2 sin 90 cos 70 O2 sin 80 sin 0 O

Question

2 Use the sum to product formulas to rewrite the sum or difference as a product sin 90 sin 70 O2 sin 90 cos 70 O2 sin 80 sin 0 O 2 cos 80 sin 0 O2 cos 80 cos 0 2 sin 8A COSA

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