00:01
Hello everyone, this question is given that the point p is on the unit circle and it lies in the fourth quadrant and they have given the y coordinate we have to find x coordinate.
00:11
So first let us draw the circle.
00:16
So i divide the circle into four quadrants.
00:19
So this is the center point.
00:22
So at the center we see and this is first quadrant and this is second quadrant and this is third and this is fourth.
00:30
So the first quadrant will be in the form plus plus and the second quadrant will be in the form minus plus and in the third quadrant the points will be minus minus and in the fourth quadrant the points will be plus minus that is the x coordinate is plus and y coordinate is minus.
00:51
So they have given the point p is on the unit circle and therefore it is in the fourth quadrant.
00:56
So these are the fourth quadrant.
00:58
So let us take the point p here.
01:02
So i am connecting this and this.
01:06
So this is nothing but this is x coordinate.
01:09
So that only we have to find and this is y coordinate.
01:13
Y coordinate is they have given minus 2 by 8 and this is nothing but from the center to this point is nothing but radius.
01:22
So radius we know it is unit circle so the radius will be 1...