Question

Q. 11) Show that the vectors a = 2i+3j+6k, b=3i-6j+2k
are perpendicular to each other.​

Answer 1

Answer:

Hey mate..

Here's ur answer.....

•perpendicular i.e. 90 degree...

•90 degree=0 is found in dot vector (always search for 0 as the answer)

•a.b=0

•(2i+3j+6k)(3i-6j+2k)

• 2i(3i-6j+2k)+3j (3i-6j+2k)+6k(3i-6j+2k)

•6-0+0+0-18+0+0-0+12 [i.i=j.j=k.k]

•6-6

•0

from this it is proved that vectors a and

b are perpendicular to each other...

Hope it helps.

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Answer 2

Answer:

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Explanation:

Please mark my answer brainlist dear