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Chapter 9
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Lesson 9.3.1
> Problem 9-105
9-105.
Hint:
Use the double angle formula:
2cos
x
· sin
x
= sin2
x
Step 1:
4(2cos
x
· sin
x
) = 2
Step 2:
4(sin2
x
) = 2
Step 3:
Step 4: