SOLUTION: I need help verifying the following identity:
(sin B + cos B) (sin B - cos B) = 2 sin^2 B - 1
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Question 476393: I need help verifying the following identity:
(sin B + cos B) (sin B - cos B) = 2 sin^2 B - 1
Answer by Tatiana_Stebko(1539) (Show Source): You can put this solution on YOUR website!
Use formula
Use formula =>
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