I have 2 problems. First, solve 2cosX + tanX = secX where X is greater than or equal to zero and less than 2 pi. I understand that the secant is basically the inverse of the cosine, (hyp/adj), but I have no idea how to solve for this. I also don't understand how to solve an equation with 2 different trig functions in it (sin and cos) Please help! Also, it says solve 2sinX + cotX = cscX where X is defined by the same parameters as mentioned above. I have the same problem. Help! Thanks!!!!!!