Asked by Sade
Write 3theta - sin 4theta as a product.
Answers
Answered by
Steve
I assume you meant (using x)
sin3x - sin4x
Use the sum-to-product formula:
sinA-sinB = 2 cos(A+B)/2 sin(A-B)/2
sin3x - sin4x
Use the sum-to-product formula:
sinA-sinB = 2 cos(A+B)/2 sin(A-B)/2
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