Question 562195
Find all values of x in the interval [0, 2&#960;] that satisfy the inequality. 
16 cos(x) + 8 > 0
16 cos(x) > -8
cos(x) >-8/16
cos(x) >-1/2
2&#960;/3 <  x  &#8804; &#960;/2 (in quadrant II where cos<0)