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If the position vectors of P, Q, R and S are 2hati+hatj, hati-3hatj, 3hati+2hatj and hati mu+hatj respectively and PQ"||"RS, then the value of mu is |
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Answer» `-7` `and RS= - 2hati + (mu - 2)hatj` Given,`PQ||RS RARR PQ= lambda RS` `-hati - 4 hatj =[ lambda { - 2hati +(mu-2)hatj}]` `rArr lambda = 1//2 and mu = -6 ` |
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