Question

Bantuin dong nomor 14,15,16 materi Vektor

Answer 1

A (7, -5, 5)

B (7, -3, 4)

C (7, -4, 2)

We'll define line segments:

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Thus:

||AB||=

||AC||=

||BC||=

It is apparent that ||AB||=||BC||, Proving that ABC an icosceles triagle.

Also,

AB · BC = (0, 2, -1) · (0, -1, -2)

            = 0 -2 + 2

            = 0,

Proving that ABC is a right triangle.