Give each trig as a fraction in simplest form

Let's first find the missing side length. 
a^2+b^2=c^2
14^2+b^2=50^2
196+b^2=2500
-196         -196
         b^2=2304
square root of 2304 = b
b=48
48=PQ

S=O/H C=A/H T=O/A

Sin Q = 7/25
Cos Q= 24/25
Tan Q = 7/24
Sin R= 24/25
Cos R= 7/25
Tan R= 3 3/7