In Exercises 2126, find the exact values of sin 2u, cos 2u, and tan 2u using the
Chapter 6, Problem 21(choose chapter or problem)
In Exercises 21–26, find the exact values of sin 2u, cos 2u, and tan 2u using the double-angle formulas.
\(\sin u=-\frac{3}{5}, \quad 3 \pi / 2<u<2 \pi\)
Text Transcription:
sin u = −3/5, 3 pi / 2 < u < 2 pi
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