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(1) [U+W]:[(u xv)*(vx w)].(ii) [ūxū uxw vxw].12. Prove that(i) [ā 5+c a+b+c] =0(ii) (a+25-c)-[(a-)x(a-5-c)]= 3 [a b c].13. If a = i +5k , T = 2ỉ + 3k, C = 4 - j + 2kand d=î -, find (c-ā)(bxd).14. Find the volume of a tetrahedron whose |
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