1.

Let a=2^i+^j−2^k, b=^i+^j and c be a vector such that |c−a|=3,|(a×b)×c|=3 and the angle between c and a×b is 30∘. Then, a⋅c is equal to

Answer»

Let a=2^i+^j2^k, b=^i+^j and c be a vector such that |ca|=3,|(a×b)×c|=3 and the angle between c and a×b is 30. Then, ac is equal to




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