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Standard X

Mathematics

Distance Formula

If the vertic...

Question

If the vertices of A, B, C of a triangle ABC have position vectors (1, 2, 3), (-1, 0, 0) and (0, 1, 2) respectively then angle ABC equals

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Q. If the vertices

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Q. The vertices of a triangle ABC are A(2, 3, 1), B(-2, 2, 0) and C(0, 1, -1). Find the cosine of angle ABC.

If the vertices A, B, C of a triangle ABC have position vectors (1, 2, 3), (-1, 0, 0), (0, 1, 2) respectively then find $∠ A B C$ ( $∠ A B C$ is the angle between the vectors BA and BC).

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cubic units, then the CORRECT statement(s) is (are)

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