Question 596130: Suppose That ((4)/(5),y) is a point in quadrant II lying on the unit circle.
find y write the exact value not a decimal approximation.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Suppose That ((4)/(5),y) is a point in quadrant II lying on the unit circle.
find y write the exact value not a decimal approximation.
----------
You have unneeded parentheses.
(4/5,y), or (0.8,y) is on the unit circle in Q2.
------
 is the distance from the Origin, (0,0)
y = 0.6, or 3/5
----------
If x = +0.8, it can't be in Q2
The point is either (4/5,3/5) or (4/5,-3/5)
|
|
|
