SOLUTION: recall that sin 2x = 2 sin x * cos x and that sin^2 x + cos^2 = 1. Given that sin alpha = 3/5, we conclude that,
a) sin 2 alpha = 19/25
b) |sin 2 alpha| = 24/25
c) |sin 2 alp
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Question 1122330: recall that sin 2x = 2 sin x * cos x and that sin^2 x + cos^2 = 1. Given that sin alpha = 3/5, we conclude that,
a) sin 2 alpha = 19/25
b) |sin 2 alpha| = 24/25
c) |sin 2 alpha| = 6/5
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
Try making the substitution for and see what you find!
You find for first identity, .
You find for the second identity with the given value, .
.
.
Choices (a) and (c) are not right.
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