Use the product-to-sum formula to write the given product as a sum or difference.
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Correct Answer:
Verified
Q47: Use the half-angle formulas to determine the
Q48: Verify the given identity. Q49: Use a double angle formula to rewrite Q50: Use the sum-to-product formulas to find the Q51: Use the sum-to-product formulas to write the Q53: Use the half-angle formula to simplify the Q54: Find the exact value of Q55: Simplify the given expression algebraically. Q56: Find all solutions of the given equation Q57: Use the figure below to find the
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