Summary (Grade 10 NSC Matric Mathematics): Flashcards

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3 basic trig ratios

Sine, Cosine, Tangent

sin⁡θ\sin θ formula

oppositehypotenuse\frac{\text{opposite}}{\text{hypotenuse}}

cos⁡θ\cos θ formula

adjacenthypotenuse\frac{\text{adjacent}}{\text{hypotenuse}}

tan⁡θ\tan θ formula

oppositeadjacent\frac{\text{opposite}}{\text{adjacent}}

SOH CAH TOA meaning

Sin=Opp/Hyp, Cos=Adj/Hyp, Tan=Opp/Adj

3 reciprocal trig ratios

Cosecant, Secant, Cotangent

cosec⁡θ\cosec θ is reciprocal of

Sine

sec⁡θ\sec θ is reciprocal of

Cosine

cot⁡θ\cot θ is reciprocal of

Tangent

Special angles in trigonometry

0°, 30°, 45°, 60°, 90°

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