Question

If point P(-12/13,y) lies on the unit circle and P is in the second quadrant, y is _____. If necessary, use the slash bar ( / ) to represent a fraction.

Answer 1

P(-,y) ?? is that a typo?

Answer 2

yes -12/13, y

Answer 3

cos^2 + sin^2 = 1

(-12/13)^2 + sin^2 = 1

144/169 + sin^2 = 1

sin^2 = 1-144/169

sin^2 = 25/169

sin = sqrt(25/169)

sin = 5/13


So y = 5/13

Answer 4

Thanks

Answer 5

yw