Trigonometric Identities - Power Reducing Formulas

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6 Terms

1
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sin^2(x)

(1-cos(2x))/2

2
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cos^2(x)

(1+cos(2x))/2

3
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tan^2(x)

(1-cos(2x))/(1+cos(2x))

4
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sec^2(x)

1/(cos^2(x))

5
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csc^2(x)

1/(sin^2(x))

6
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cot^2(x)

1/(tan^2(x))