# Trigonometry

Convert to polar coordinates with r greater than or equzl to 0 and theta between 0 degrees and 360 degrees

Write the equation inpolar coordinates
x squared + y squared = 2

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1. r^2 cos^2 theta + r^2 sin^2 theta = 2

r^2 (cos^theta + sin^2 theta) = r^2 = 2

r = sqrt 2 ; theta = anything

This is a circle with radius sqrt 2.

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