Use the unit circle find the exact value of sin(3/2)π and tan(3/2)π

Question

I need help breaking it down

Answer 1

sin (3/2)pi = -1/1 = -1

tan (3/2)pi is undefined,

tangent of an angle on a unit circle is opposite side over adjacent side. tan(3/2)pi = tan(270)= -1/0 which is undefined

you can't divide by zero

sine of an angle = opposite side over 1, on a unit circle

sin(3/2)pi = sine of 270 degrees =-1/1=-1