MATHS

PLS HELP TO SOLVE THIS

a=(17+5sinx+12cosx) / (17+5sinx-12cosx) = b
THEN a and b are equal to
OPTIONS ARE
1. 2/15 and 2
2. 2 and 2/15
3. 2/15 and 15/2
4. -1 and 1
PLS GIVE EXPLANATION