1.P(3,−1,2)P(3,-1,2)P(3,−1,2), Q(1,2,−4)Q(1,2,-4)Q(1,2,−4). R,SR,SR,S with PRPRPR direction ratios (4,−1,2)(4,-1,2)(4,−1,2) and QSQSQS direction ratios (−2,1,−2)(-2,1,-2)(−2,1,−2). PRPRPR and QSQSQS intersect at TTT. If TA⃗⊥PR⃗,QS⃗\vec{TA}\perp\vec{PR},\vec{QS}TA⊥PR,QS and ∣TA⃗∣=5|\vec{TA}|=\sqrt{5}∣TA∣=5, then ∣OA⃗∣|\vec{OA}|∣OA∣ isa.482\sqrt{482}482b.171\sqrt{171}171c.5\sqrt{5}5d.227\sqrt{227}227Login to continueOnly logged in users canattempt or see the solution.
