Trigonometric Identities and Formulas

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13 Terms

1
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csc trig identies

1/sin(x)

2
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sec (X)

1/cos(X)

3
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sin(x)csc(x)

1

4
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cos(x)sec(x)

1

5
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sin²+cos²

1

6
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1+tan²x

sec²(x)

7
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cot²x+1

csc²

8
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sin(2x)

2sin(x)cos(x)

9
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cos(2x)

cos²(X)-sin²(x) 2cos²()-1 1-2sin²(x)

10
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sin (A+B)

sin(A)cos(B) + cos(A)sin(B)

11
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cos(A+B)

cos(A)cos(B) - sin(A)sin(B)

12
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Sin(A-B)

sin(A)cos(B) - cos(A)sin(B)

13
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cos(A-B)

cos(A)cos(B) + sin(A)sin(B)