# What is #|| <4, 5, -7 > - < 9, -2, 1 > ||#?

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The result is 17.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- What is #|| <1, 6, -3 > - < 4, -2, -9 >||#?
- A projectile is shot from the ground at an angle of #(5 pi)/12 # and a speed of #12 m/s#. Factoring in both horizontal and vertical movement, what will the projectile's distance from the starting point be when it reaches its maximum height?
- What is the dot product of #<1,5,-3 ># and #<-1,4,2 >#?
- What is the cross product of #[1,-2,-1]# and #[1,-1,3] #?
- Why are vectors important in physics?

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