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## Homework Statement

Let a and b denote two 2D vectors a = <a

_{1}, a

_{2}> b=<b

_{1}, b

_{2}>

show directly that a

^{.}b ≤ ||a||||b||

## Homework Equations

## The Attempt at a Solution

Im looking for a place to start here. Should i start by computing the dot product of a and b and then also finding the magnitude of a and b?

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