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cross product

Questions (2)

Use vectors to decide whether the triangle with verticesP(3, −3, 0), Q(4, 0, −2), and R(8, −2, −3) is right-angled. I
1. 1 answer
2. 623 views
I have 3 points:P(-3, 1, 2), Q(-1, 2, 3), R(2, 1, 0) and I need to find a nonzero vector orthogonal to the plane through these
1. 1 answer
2. 710 views