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MTH 123- Exam 1

TermDefinition
2√3/3 1.154
√3 1.732
√2 1.414
√2/2 0.707
√3/2 0.866
√3/3 0.577
Pythagorean identity cos^2(x) + sin^2(x)= 1
Cosine the x-coordinate of the terminating point of arc t
Sine the y-coordinate of the terminating point of arc t
Circumference of the unit circle
Find arc length circumference (2πr) x fraction of circle
Linear velocity (in radians) v=arc length/ time or rθ/t
Reference arc t hat smallest non-negative between the terminal point of the arc t and the closest of the 2 x-intercepts of the unit circle
Tangent function, domain, range, and period sin x()/ cos(x), all x not equal to π/2 + kπ, (-∞,∞), π
Secant function, domain, range, and period 1/cos(x), all x not equal to π/2 + kπ, sec(x)≤-1 or sec(x) ≥1, 2π
Cosecant function, domain, range, and period 1/sin(x), all x not equal to kπ, csc(x)≤-1 or csc(x) ≥1, 2π
Cotangent function, domain, range, and period cos(x)/sin(x), all x not equal to kπ, (-∞,∞), π
Find the period of a function pure property/coefficient of x
Domain, range, and period of sine and cosine (-∞,∞), [-1,1}, 2π
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