Question

Trig.

@lilpeter504

Answer 1

Alright, here we go

Answer 2

Angles in Standard Position
Radian Measure
Reciprocal Ratios
Special Angles
Graphing 1, and 2

Is what we'll do first.

Answer 3

Okay

Answer 4

Just to let you know, I don't have a calculator in hand so I will try my best to use my computer calculator.

Answer 5

Alright so we really just jump into it,

Trig.

SOH CAH TOA (Remember this)

\[SOH = \sin \theta = \frac{ opposite }{ hypotenuse } = \frac{ y }{ r }\]

\[CAH = \cos \theta = \frac{ adjacent }{ hypotenuse } = \frac{ x }{ r }\]

\[TOA = \tan \theta = \frac{ opposite }{ adjacent } = \frac{ y }{ x }\]



My drawings are terrible lol, but I hope it gets the point across.

This will help us look at angles as counter - clockwise rotations. Counter - clockwise rotations are positive angles. Where clockwise are negative angles.

The reference triangles are always drawn from the x - axis (adjacent is always x)

The length of the adjacent and opposite side (x and y) correspond to the co - ordinates of a point on a circle, and the hypotenuse is the length of the radius r.

The location of the co - ordinates in terms of x and y, are indicated by the sign. ( For x, right is positive, left is negative. For y, up is positive and down is negative).

The direction of the radius is given by the angle, thus r is always positive ( or absolute value).

Angles can be measured in degrees or radians.

This is just some stuff, I'd hope you already know.