write all the formula trigonometry identities and standard angle?
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Shifting angle by π/2, π, 3π/2 (Co-Function Identities or Periodicity Identities)
sin (π/2 – x) = cos x cos (π/2 – x) = sin x
sin (π/2 + x) = cos x cos (π/2 + x) = – sin x
sin (3π/2 – x) = – cos x cos (3π/2 – x) = – sin x
sin (3π/2 + x) = – cos x cos (3π/2 + x) = sin x
sin (π – x) = sin x cos (π – x) = – cos x
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What are the formulas of trigonometry?
Basic Formulas
sin θ = Opposite Side/Hypotenuse.
cos θ = Adjacent Side/Hypotenuse.
tan θ = Opposite Side/Adjacent Side.
sec θ = Hypotenuse/Adjacent Side.
cosec θ = Hypotenuse/Opposite Side.
cot θ = Adjacent Side/Opposite Side
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