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C H A P T E R 5 Analytic Trigonometry

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506 Chapter 5 <strong>Analytic</strong> <strong>Trigonometry</strong><br />

102.<br />

104.<br />

106.<br />

108.<br />

110.<br />

cos 3 cos2 <br />

<br />

cos cos <br />

<br />

cos 2 cos sin 2 sin <br />

cos <br />

1 2 sin2 cos 2 cos sin sin <br />

cos <br />

1 2 sin 2 2 sin 2 <br />

1 4 sin 2 <br />

tan u 1 cos u<br />

<br />

2 sin u<br />

1 cos u<br />

<br />

sin u sin u<br />

csc u cot u<br />

sin x sin y<br />

cos x cos y <br />

x y<br />

2 sin<br />

x y<br />

2 sin<br />

2 <br />

x y<br />

cot 2 <br />

cos t cos 3t<br />

sin 3t sin t <br />

2 cos 4t<br />

cos <br />

3<br />

cost<br />

sint<br />

2 <br />

cost<br />

cot t<br />

sint<br />

x cos <br />

3<br />

2<br />

2 cos 4t<br />

2<br />

cos x y<br />

cos 2t<br />

2 <br />

sin x y<br />

2 <br />

2<br />

sin 2t<br />

2<br />

<br />

3<br />

x 2 cos<br />

<br />

x x<br />

3<br />

2<br />

2 cos <br />

3 cosx<br />

2 1<br />

cos x cos x<br />

2<br />

<br />

103.<br />

105.<br />

107.<br />

109.<br />

sec u 1<br />

<br />

2<br />

cos u<br />

2<br />

± 2<br />

1 cos u<br />

2 sin u<br />

±sin u1 cos u<br />

2 sin u<br />

±sin u sin u cos u<br />

±<br />

2 sin u<br />

cos u<br />

<br />

sin u sin u cos u<br />

<br />

cos u cos u<br />

2 tan u<br />

±tan u sin u<br />

sin x ± sin y<br />

cos x cos y <br />

x ± y<br />

2 sin<br />

x y<br />

2 cos<br />

2 <br />

2 <br />

x ± y<br />

tan 2 <br />

cos 4x cos 2x<br />

sin 4x sin 2x <br />

4x 2x<br />

2 cos<br />

4x 2x<br />

2 sin<br />

sin <br />

6<br />

<br />

3<br />

cos x <br />

3<br />

2<br />

<br />

x sin <br />

6<br />

x<br />

<br />

x y<br />

cos<br />

2 <br />

x y<br />

cos<br />

2 <br />

2 <br />

2 <br />

4x 2x<br />

cos<br />

2 <br />

4x 2x<br />

cos<br />

2 <br />

2 cos 3x cos x<br />

cot 3x<br />

2 sin 3x cos x<br />

<br />

x 2 sin cos x<br />

6<br />

2 1<br />

cos x<br />

2<br />

cos x

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