trigonometry Cheat Sheet

A cheat sheet in English by lolsomething

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Sinθ= opp/hyp
Cosθ= adj/hyp
Tanθ= opp/adj
Cosecθ= hyp/opp
Secθ= hyp/adj
Cotθ= adj/opp

SOH CAH TOA

Sin²θ+Cos²θ= 1
Sec²θ=1+Tan²θ
Cosec²θ=1+Cot²θ

Memorise

Memorise. very important

Sin(90°-θ)=Cosθ
Cos(90°-θ)=Sinθ
Cosec(90°-θ)=Secθ
Sec(90°-θ)=Cosecθ
Tan(90°-θ)=Cotθ
Cot(90°-θ)=Tanθ

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