Trig Vocab
Posted: January 25th, 2011, 10:49 pmTerminal Side of an Angle
The ray where measurement of an angle stops.
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Coterminal Angles
Angles which, drawn in standard position, share a terminal side. For example, 60°, -300°, and 780° are all coterminal.
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Pythagorean Identities
Circle Identities
Trig identities relating sine with cosine, tangent with secant, and cotangent with cosecant. Derived from the Pythagorean theorem.
sin[super]2[/super] θ + cos[super]2[/super] θ = 1
tan[super]2[/super] θ + 1 = sec[super]2[/super] θ
cot[super]2[/super] θ + 1 = csc[super]2[/super] θ
The ray where measurement of an angle stops.
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Coterminal Angles
Angles which, drawn in standard position, share a terminal side. For example, 60°, -300°, and 780° are all coterminal.
[/hr]
Pythagorean Identities
Circle Identities
Trig identities relating sine with cosine, tangent with secant, and cotangent with cosecant. Derived from the Pythagorean theorem.
sin[super]2[/super] θ + cos[super]2[/super] θ = 1
tan[super]2[/super] θ + 1 = sec[super]2[/super] θ
cot[super]2[/super] θ + 1 = csc[super]2[/super] θ