How To Use sin,cos,tan

This week in math we learnt how to use sine, cosign, and tangent. There is an easy way to remember each one of their functions.

SOH= Sin= Opposite/Hypotenuse

CAH= Cos= Adjacent/Hypotenuse

TOA= Tan=Opposite/Adjacent

Depending on what angle/side of the triangle you need you use that function. The first step of solving your equation is to always label your triangle with the hypotenuse, opposite, and adjacent. Then you have to figure out which function you need to use. After you figure that up you set up your equation and solve it.

Example:

trig

To find x you have to use sine or tangent. I am going to use sine.

sin(65)=(\frac{x}{6})

.906307787*6=x

x=5.44

 

Leave a Reply

Your email address will not be published. Required fields are marked *