Asked by Mily
The rectangular coordinates of the point P are (-1,sqrt 3). If P is reflected witg respect to the x-axis, then the polar coordinates of its image are¡??
Answers
Answered by
Reiny
(-1 , √3) ----> (-1 , -√3) after reflection in the x-axis
new point is in III,
tanØ = -√3/-1 = 240° in III
magnitude = √(1^2 + √3^2) = √4 = 2
point in polar coordinates:
(2cos240°, 2sin240°) or (2cos 4π/3, 2sin 4π/3)
new point is in III,
tanØ = -√3/-1 = 240° in III
magnitude = √(1^2 + √3^2) = √4 = 2
point in polar coordinates:
(2cos240°, 2sin240°) or (2cos 4π/3, 2sin 4π/3)
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