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Let veca,vecb and vecc be three non-copl...

Let `veca,vecb and vecc` be three non-coplanar unit vectors such that the angle bet ween every pair of them is `pi/3`. If `vecaxxvecb+vecbxxvecc=pveca+qvecb+rvecc`, where p,q and r are scalars, then the value of `frac{p^2+2q^2+r^2}{q^2}` is :

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MODERN PUBLICATION-EXCLUSIVELY FOR JEE(ADVANCED)-EXERCISE
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