Point A is at (-2 ,-8 ) and point B is at (-5 ,3 ). Point A is rotated (3pi)/2 clockwise about the origin. What are the new coordinates of point A and by how much has the distance between points A and B changed?
1 Answer
Mar 12, 2016
Let Initial polar coordinate of A ,
Given Initial Cartesian coordinate of A ,
So we can write
After
Initial distance of A from B(-5,3)
final distance between new position of A(8,-2) and B(-5,3)
So Difference=
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