Let a = 2 i + j -2 k , b = i + j and c = a b . Let d be a vector such that | d - a | = 11 , | c d | = 3 and...

Question

Let a = 2 i + j -2 k , b = i + j and c = a b . Let d be a vector such that | d - a | = 11 , | c d | = 3 and the angle between c and d is 4 . Then a d is equal to

Accepted Answer

(3)

JEE Main 2026 Mathematics question

Solution

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