Let a = 2i + j − 2k and b = i + j. If c is a vector such that a.c = ⏐c⏐,⏐c − a⏐ = 2 \sqrt2 and the anglebetween a × b and c is 30°, then ⏐(a × b) × c ⏐ =

JEE Mains Model Paper 6

Question : 25 of 90

Marks: +1, -0

Let a = 2i + j − 2k and b = i + j. If c is a vector such that a.c = ⏐c⏐,⏐c − a⏐ = 2 √2 and the anglebetween a × b and c is 30°, then ⏐(a × b) × c ⏐ =

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