A.Vs/Vw B.Vw/Vd C.VdVw D.Vs/Vd
A.Vs×Vd/Vw B.Vs×Vw×Vd C.Vs/Vw/Vd D.Vs×Vw/Vd
A.UT=(Um/cosθ)-Z×tanθ B.UT=(Um/cosθ)+Z×tanθ C.UT=(Um/tanθ)-Z×cosθ D.Um=(UT/tanθ)+Z×cosθ