Trigonometric Identities

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8 Terms

1
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Reciprocal identity

sin x =

\frac{1}{\csc x}

2
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reciprocal identity

cos x =

\frac{1}{sec^{}x}

3
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Reciprocal identity

tan x =

\frac{1}{cotx}

4
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quotient identity

tan x =

\frac{\sin x}{\cos x}

5
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quotient identity

cot x =

\frac{\cos x}{\sin x}

6
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Pythagorean identity

\sin^2x+\cos^2x=

1

7
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pythagorean identity

\tan^2x+1=

\sec^2x

8
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pythagorean identity

\cot^2x+1 =

\csc^2x