AF42694 AF42694

14-06-2018
Mathematics

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If the point (x,-1) is on the unit circle, what is the value of x?

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Avvico33 Avvico33

14-06-2018

A unit circle has its center at the origin and has a radius of one. It is modeled by the equation
x² + y² = 1

We are given with (x,-1) .
Solving for x
x² + (-1)² = 1
x = 0

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