Question

whats sine and cosine of 5pie/4 in unit circle? whats sine and cosine of 5pie/4 in unit circle? @Mathematics

Answer 1

f(x)=(x^2-1)/(x+1)

Answer 2

dont understand that answer

Answer 3

am talking of trigonometric functions

Answer 4

sorry that somehow posted on the the wrong question

Answer 5

The first line is pi/6, second is pi/4, and third is pi/3. Or in degrees, 30, 45, and 60.

The points, (sqrt(3),1/2) for example, is (cos,sin) of the angle. So the cos(pi/6) is sqrt3/2.

Do you understand that?