How do we know that we have to use the INVERSE function?

• Because we're missing a side length

• Because we're missing an angle measure

• Because we are using tangent

• Because it's a right triangle

You have to press "=" after putting in your fraction and BEFORE you press "2nd"

• True

• False

What do you have to press on the calculator in order to use the inverse trig function?

• SIN

• COS

• 2nd

• =