For the point (-4,4) on the terminal arm of the angle theta? Find the exact value in fractional form of sin theta? Find the value of theta in degrees?

Question

Can some one help me solve this please

Answer 1

(-4, 4) is in the 2nd quadrant

theta = 180-45

= 135 degrees + 360n

where n = any integer

sin135 = 1/sqr2

=(sqr2)/2

=about 0.707

Answer 2