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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91.<br />
93.<br />
95.<br />
97.<br />
99.<br />
sin 2 5<br />
13 2<br />
25<br />
169<br />
sin 2 1 cos 2 1 12<br />
13 2<br />
sin cos 5<br />
13 4 4<br />
5 13<br />
sin cos cos <br />
2<br />
csc 2 1<br />
sin 2<br />
<br />
<br />
5<br />
13 4 4<br />
5 13<br />
1<br />
2 sin cos <br />
1<br />
sin <br />
1<br />
2 cos <br />
csc <br />
2 cos <br />
1 144 25<br />
<br />
169 169<br />
<br />
sin 2<br />
cos 2 2 sin 2 2 cos22<br />
cos 4<br />
sin x cos x 2 sin 2 x 2 sin x cos x cos 2 x<br />
Section 5.5 Multiple-Angle and Product-to-Sum Formulas 505<br />
5 3<br />
β<br />
α 4<br />
sin 2 x cos 2 x 2 sin x cos x<br />
1 sin 2x<br />
101. 1 cos 10y 1 cos2 5y sin2 5y<br />
1 cos 2 5y 1 cos 2 5y<br />
2 cos 2 5y<br />
13<br />
12<br />
Figure for Exercises 91–94<br />
92.<br />
94.<br />
96.<br />
98.<br />
100.<br />
5<br />
cos2 cos 2 12<br />
13 2<br />
144<br />
169<br />
cos 2 1 sin 2 <br />
1 5<br />
13 2<br />
1 25 144<br />
<br />
169 169<br />
cos sin 12<br />
13 3 36<br />
5 65<br />
cos sin sin <br />
2<br />
sec 2 1<br />
cos 2 <br />
12<br />
13 3 36<br />
5 65<br />
<br />
<br />
<br />
cos 2<br />
1<br />
cos 2 sin 2 <br />
1<br />
cos 2 <br />
1 sin2 <br />
cos 2 <br />
sec2 <br />
1 tan 2 <br />
sec 2 <br />
1 sec 2 1<br />
sec2 <br />
2 sec 2 <br />
cos 4 x sin 4 x cos 2 x sin 2 xcos 2 x sin 2 x<br />
cos 2x1<br />
cos 2x<br />
sin 1 <br />
3 cos 3 22sin3 cos3 1 2<br />
sin<br />
2 3
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