1.

Show that the points A, B and C with position vectors a⃗ =3i^−4j^−4k^, b⃗ =2i^−j^+k^ and c⃗ =i^−3j^−5k^ form the vertices of a right-angled triangle.

Answer» Show that the points A, B and C with position vectors a⃗ =3i^−4j^−4k^, b⃗ =2i^−j^+k^ and c⃗ =i^−3j^−5k^ form the vertices of a right-angled triangle.


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