If the vectors a→ = i^ + aj^ + a2k^, b→= i^ + bj^ + b2k^ and c→ = i^ + cj^ + c2k^ are three non-coplanar vectors and aa21 + a3bb21 + b3cc21 + c3 = 0, then the value of abc is
| Vector Algebra
If the vectors , and are three non-coplanar vectors and , then the value of abc is
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187.
Let , and be three vectors. A vector in the plane of whose projection on is magnitude , is
188.
If the constant forces and -i^+2j^-k^act on a particle due to which it is displaced from a point A (4,- 3, - 2) to a point B (6, 1,- 3), then the work done by the forces is