C H A P T E R 5 Analytic Trigonometry
C H A P T E R 5 Analytic Trigonometry
C H A P T E R 5 Analytic Trigonometry
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33.<br />
1<br />
sin<br />
1 cos 2x1 cos 2x1 cos 2x<br />
8 2 x cos4 x sin2 x cos2 x cos2 1 cos 2x 1 cos 2x 1 cos 2x<br />
x 2 2 2<br />
34. sin4 x cos2 x sin2 x sin2 x cos2 x<br />
35. cos <br />
2<br />
36. sin <br />
2<br />
1 cos 2x<br />
2<br />
1<br />
16<br />
<br />
1<br />
8 1 cos 2x1 cos2 2x<br />
1<br />
81 cos 2x 1 cos 4x<br />
2<br />
1<br />
1 cos 2x cos 4x <br />
2<br />
1<br />
8 1 cos2 2x1 cos 2x<br />
1<br />
81 cos 2x 1 cos 4x<br />
2<br />
1<br />
8 1 cos 2x cos2 2x cos 3 2x<br />
1<br />
2 cos 2x 2 cos 4x cos 6x<br />
32<br />
Section 5.5 Multiple-Angle and Product-to-Sum Formulas 497<br />
1<br />
8 1 cos 2x cos2 2x cos 3 2x<br />
1<br />
2 2 cos 2x 1 cos 4x cos 2x cos 2x cos 4x<br />
16<br />
1<br />
1 cos 2x cos 4x cos 2x cos 4x<br />
16<br />
1 cos 2x<br />
2<br />
1<br />
2 2 cos 2x 1 cos 4x cos 2x cos 2x cos 4x<br />
16<br />
1<br />
cos 2x cos 6x<br />
2<br />
1<br />
2 2 cos 2x 2 cos 4x cos 2x cos 6x<br />
32<br />
1 cos <br />
2<br />
1 cos <br />
2<br />
θ<br />
1 15<br />
2<br />
1 15<br />
2<br />
17<br />
17<br />
<br />
1 cos 2x<br />
2<br />
15<br />
<br />
17<br />
<br />
1 cos 4x<br />
cos 2x<br />
2 <br />
Figure for Exercises 35–40<br />
32 16 417<br />
<br />
34 17 17<br />
2<br />
17 1 17<br />
<br />
2 17 17<br />
8<br />
<br />
<br />
1 cos 4x<br />
cos 2x<br />
2 <br />
sin 8<br />
17<br />
cos 15<br />
17
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