Pre Calculus 12
posted by Shreya on .
Identify the point on the unite circle coressponding to an angle of 300 degrees in standard position
A (√3, √3/2)
B (√3/2, 1/2)
C (1/2, √3/2)
D (1/2, √3 )
I don't get how to figure this out :

Ask yourself, "Which quadrant does 300° fall in" ?
It is in quadrant IV
what does a typical point in quadrant IV look like?
it must be of the type (+ ,  )
the only points with that combination is D (1/2,√3) or C(1/2 , √3/2)
check:
remember tanØ = y/x
tan 300° = 1.732.. = √3
for D) : √3 / (1/2) ≠ √3
for C) : (√3/2) / (1/2)  √3
so it is point C 
Oh that makes sense, thank you :)