Key to Practice Midterm II Problem 1
Problem 2 -3x - 11y + 21z =5 Problem 3 qz = r2 + z2 Problem 4
Problem 5 A. x = -1 + 2cos[-(t-p)] B. y = 4 + 2sin[-(t-p)] Problem 6 cos-1(-3/sqrt58) Problem 7 Problem 8 the slope for the second curve is (cfcosq +cf'sinq )/(-cfsinq + cf'cosq ) = (fcosq +f'sinq )/(-fsinq + f'cosq ) which is the slope for the first curve. Problem 9 F = -1500i + 10,000j + 5000(sqrt2 - 2)k |