add 3 cos x to each side
2=5 + 6 cos x
6cosx=-3
cosx=-1/2
x=arccos (-.5)and you can figure it from there
2-3cosx=5+3cosx 0 degrees is less than or equal to x less than or equal to 180 degrees
Can you please show me step by step in detail. Please do not skip a step. Thanks!
2 answers
120 degrees?
1 answer