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Math Formulas: Trigonometry Identities
Right-Triangle Definitions
sin 𝑥 =
Opposite
Hypotenuse
cos 𝑥 =
Adjacent
Hypotenuse
tan 𝑥 =
Opposite
Adjacent
cot 𝑥 =
Adjacent
Opposite
sec 𝑥 =
1
cos 𝑥
=
Hypotenuse
Adjacent
cosec 𝑥 =
1
sin 𝑥
=
Hypotenuse
Opposite
x
X
X
Opposite
Opposite
Adjacent

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Trigonometric Formula 1

  • 1. Math Formulas: Trigonometry Identities Right-Triangle Definitions sin 𝑥 = Opposite Hypotenuse cos 𝑥 = Adjacent Hypotenuse tan 𝑥 = Opposite Adjacent cot 𝑥 = Adjacent Opposite sec 𝑥 = 1 cos 𝑥 = Hypotenuse Adjacent cosec 𝑥 = 1 sin 𝑥 = Hypotenuse Opposite x X X Opposite Opposite Adjacent