Find all solutions of 2 cos²x - COS X – 1 = 0 in the
interval [0, 2n).

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

Which fraction is not equivalent to 8/12 a. 2/3 b. 24/36 c. 4/10 d. 6/10

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)