Determine the value of the angle whose terminal arm passes through the point (-1, 3).

a) /3

b)5/6

c)/6

d)2/3

find an equivalent expression to

sin(3/2-u)

a)-cos(u)

b)sin(u)

c)-sin(u)

d)cos(u)

Determine the value of the angle whose terminal arm passes through the point (-3,-1).

a)/6

b)7/6

c)/3

d)5/6