Trigonometry Basics: SOH-CAH-TOA, Pythagorean Theorem & Inverse Functions
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20 Terms
What is the sine of θ?
opp/hyp
What is the cosine of θ?
adj/hyp
What is the tangent of θ?
opp/adj
What is the cosecant of θ?
hyp/opp
What is the secant of θ?
hyp/adj
What is the cotangent of θ?
adj/opp
What does SOH stand for?
sin θ = opp/hyp
What does CAH stand for?
cos θ = adj/hyp
What does TOA stand for?
tan θ = opp/adj
What is csc θ in relation to sin θ?
csc θ is the flip of sin θ
What is sec θ in relation to cos θ?
sec θ is the flip of cos θ
What is cot θ in relation to tan θ?
cot θ is the flip of tan θ
Which function is opp/hyp?
sine
Which function is adj/hyp?
cosine
Which function is opp/adj?
tangent
Which function is hyp/opp?
cosecant
Which function is hyp/adj?
secant
Which function is adj/opp?
cotangent
What is the Pythagorean theorem?
a² + b² = c²
How do you find a missing angle?
Use the inverse function (sin⁻¹ or cos⁻¹ or tan⁻¹)