VectorHard

Question

Let are three non-coplanar vector such that If , then -

Options

A.
B.
C.
D.

Solution

  ... (i)
  ... (ii)
  ... (iii)

If
then
=
⇒   ... (iv)
... (v)
  ... (vi)
Solving (iv) (v) & (vi) we get
= 7 / 2 ; λ3 = - 1/2
Now check options


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