Trigonometric Identities

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7 Terms

1
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sin2x = (cos identity)

1 - cos2x

2
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cos2x = (sin identity)

1 - sin2x

3
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sec2x = (tan identity)

1 + tan2x

4
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tan2x = (sec identity)

sec2x - 1

5
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csc2x = (cot identity)

cot2x + 1

6
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cot2x = (csc identity)

csc2x - 1

7
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Write all possible equations that sum/diff up to 1.

sin2x + cos2x, sec2x - tan2x, csc2x - cot2x