Math– Midterm terms

Suffer

Coterminal angle

2 angles in standard position with same terminal side

Reference angle

size of smallest acute angle

Radian

angle made at the center of a circle by an arc equal in length to radius

Revolution

2 radians (360°)

Cosecant (csc)

1/sin(x)

Secant (sec)

1/cos(x)

Cotangent (cot)

1/tan(x)

Tangent (tan)

sinx/cosx

Longest triangle side w/

Biggest triangle angle w/

Angle of elevation

looking up from flat side

Angle of depression

looking down from flat side

Amplitude

highest y coordinate (stretch or shrink along y axis0

Period

How long does the graph take to repeat (stretch or shrink along x axis)

Phase shift

graph shift up or down

Vertical shift

graph shift right or left

arcsin

1/sinx

arccos

1/cosx

arctan

sinx/cosx

Midline

the middle y-coordinate of the graph

||R

infinite domain/range

domain

how far does the graph go along the x-axis

range

how far does the graph go along the y-axis

y=asin(x+h)+v

equation of sinusoidal graph (h=horizontal shift, v=vertical, a=stretch/shrink)

law of cosine

a^2=b^2+c^2-2bc•cos(a)

area

1/2ab•sin(θ)

law of sines

sina/a=sinb/b=sinc/c

polar–>cartesian

(xcosy, xsiny)=(a,b)

cartesian–>polar

√x^2+y^2=a, tan^-1(x/y)=b (a,b)