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MHT CET202013 Oct 2020Evening ShiftMathematicsVector AlgebraActual

If the vectors i +2 +x k and y t+6 k +4 k are collinear, then the values of x and y are respectively,

Options

  1. A4 3 , 3
  2. B3,4
  3. C1 3 , 1
  4. D4,3

Correct answer

A. 4 3 , 3

Step-by-step solution

Let a & b be given collinear vectors array l a = m b i +2 j + x k = m ( yi +6 j +4 k ) i +2 j + xk = my i +6 ~m j +4 mk 1= my , 2=6 ~m , x =4 ~m m = 1 3 , y =3, x = 4 3 array

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