SOLUTION: Can I please have your assistance? Verify the following identity by using an angle sum identify: cos(2x) = 1 - 2(sin2 x). Hint (2x = x + x )
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Question 1042547: Can I please have your assistance? Verify the following identity by using an angle sum identify: cos(2x) = 1 - 2(sin2 x). Hint (2x = x + x )
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
Use the formula for angle sum for cosine, . You take it from here.
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