If sin(t) = − Squareroot of 3 over 2 , what is the exact value of sin(−t)? The squareroot is not negative, the fraction is!

Answer 1

sine is negative in quadrants 3 and 4

sin 60 = sqrt(3)/2

so the angle is either 240 or 300

So then sin(-240) = sin(120) = sqrt(3)/2

sin(-300) = sin(60) = sqrt(3)/2