Help PLEASE!!

[craycrayfangirl]

Ok, so i have no idea what to do for this problem, and im extremely frustrated. I missed the lesson for this section
heres the problem:
The sine, cosine and tangent ratios each have a reciprocal ratio. The reciprocal ratios are cosecant (csc), secant (sec), and cotangent(cot). Use triangle ABC (AB=15, BC=12, AC=9) and the definitions below to write each ratio.
csc X= 1/sin X sec X= 1/cos X cot X= 1/tan X

find: csc A
cot A
sec B

 

[tkhunny]

Well, you have a Right Triangle. That is good.

Are you familiar with the first three definitions?

sin() is Opposite / Hypotenuse

cos() is Adjacent / Hypotenuse

tan() is Opposite / Adjacent