1)Determine equation of line in XY -plane which contains point (4,8) and makes the angle 74 degrees with positive x-axis. 2) Assume -pi/2 < theta <0 and cos{theta}=1/7. Find SIN{THETA} and TAN{THETA} 3) Assume U is in interval (0, pi/2) with Tan U =8. Compute exact expression for Sec U and Csc U and Sin U.