Trigonometric identities Flashcards

1
Q

equation of unit circle

A

x^2 +y^2 = 1

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2
Q

identity derived from cosθ = x and sinθ= y and pythagorus

A

sin^2 θ + cos^2 θ = 1

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3
Q

identity such that cosθ≠0 for all values of θ,

A

tanθ ≡ sinθ/cosθ

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4
Q
A
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