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.
Third Option
Step-by-step explanation:
sqrt(13 = 3.6055512754639893
3.6
1. 7/10
2.1/10
3.6/10 (Simplifly is 3/5)
4. 1/10
i think (C)
hope this helps you
I can do the last two
85×m=z
85×20=1700
