Answer:
63
Step-by-step explanation:
27+90=117
180-117=63
In quadrant I, when sin angle is 1/2, cos angle is (sqrt3)/2
-6, because you can see a pattern in which the x coordinate of each pair is reversed to the opposite value, from positive to negative.
Step-by-step explanation:
Take a look at the picture, And tell me if am wrong