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Karolina [17]
2 years ago
5

Find a ⋅ b. a = 1i - 3j, b = 2i + 3j

Mathematics
1 answer:
Irina18 [472]2 years ago
5 0

Answer:

Consider the given vectors.

a=3i+2j−6k

b=4i−3j+k

Now,

a⋅b=(3i+2j−6k)(4i−3j+k)

a⋅b=12−6−6=0

Therefore,

Two vectors a and b are perpendicular.

Thus, the angle between the vectors a and b =90

∘

Hence, this is the answer.

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