Homework Soursesuppose a real number t determines the terminal point x y on
suppose a real number t determines the terminal point x y on a unit circle. Find the terminal point determined by the real number Pi-t.
-x,-y
Y, x
-x,y
X,y
X,-y
suppose a real number t determines the terminal point x y on a unit circle. Find the terminal point determined by the real number Pi-t.
-x,-y
Y, x
-x,y
X,y
X,-y
-x,-y
Y, x
-x,y
X,y
X,-y
Solution
t determines the terminal point x y on a unit circle
t(rotate cc -t which places reference angle t in quadrant II where sin>0, cos<0)
so -x,y
