Precalculus Examples

,
Use the distance formula to determine the distance between the two points.
Substitute the actual values of the points into the distance formula.
Simplify.
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Multiply by to get .
Add and to get .
Remove parentheses around .
Raise to the power of to get .
Multiply by to get .
Subtract from to get .
Remove parentheses around .
Raising to any positive power yields .
Add and to get .
Rewrite as .
Pull terms out from under the radical, assuming positive real numbers.
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