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stich3 [128]
3 years ago
15

If the point (x,square root 3/2) is on the unit circle, what. is x?

Mathematics
1 answer:
galina1969 [7]3 years ago
3 0

Answer:

x=\pm\frac{1}{2}

Step-by-step explanation:

On a unit circle, (x,y)=(\cos\theta,\sin\theta), so \sin\theta=\frac{\sqrt{3}}{2} in this case. If you look at the attached circle, the only time that the y-coordinate is \frac{\sqrt{3}}{2} is when x=-\frac{1}{2} and x=\frac{1}{2}, which correspond to angles of \theta=\frac{2\pi}{3} and \theta=\frac{\pi}{3} respectively

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