You can solve a right triangle using the trig functions if an angle and a side are given. Trig Functions are used to find the measure of a side.
Sine, Cosine, and Tangent Functions
These trig functions are used to describe the relationships between the sides of a triangle.
The following mnemonic device is useful for remembering the trig functions: SOHCAHTOA
Sine = Opposite/Hypotenuse
Cosine = Adjacent/Hypotenuse
Tangent = Opposite/Adjacent
Secant, Cosecant, and Cotangent Functions
These are other trig functions that are inversely related to sine, cosine, and tangent.
Secant = 1 / Cosine
Cosecant = 1 / Sine
Cotangent = 1 / Tangent
SinA*CscA = 1
CosA*SecA = 1
TanA*CotA = 1
REMEMBER: ALL TRIG FUNCTIONS CAN ONLY BE USED WITH RIGHT TRIANGLES
Inverse Trig Functions
*Inverse Trig Functions are not the same as the Secant ,Cosecant, and cotangent trig functions!*
Inverse Trig Functions are used to find the measure of an angle.
sinA = opposite/hypotenuse
A = sin-1(opposite/hypotenuse)
What can and inverse function be used for when it comes to connecting it back with regular trig functions?