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The volume of the tetrahedronwhose verti...

The volume of the tetrahedronwhose vertices are the points with position vectors `hati-5hatj+10hatk, -hati-3hatj+7hatk, 5hati-hatj+lamdahatk` and `7hati-4hatj+7hatk ` is 11 cubic units then the value of `lamda` is (A) 7 (B) 1 (C) -7 (D) -1

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