Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
A point
P
P
P
lies on the unit circle with
x
x
x
–coordinate
−
3
5
-\dfrac{3}{5}
−
5
3
and is in Quadrant II. Which of the following equals
sin
θ
\sin \theta
sin
θ
for the angle
θ
\theta
θ
represented by
P
P
P
? a)
−
3
5
-\dfrac{3}{5}
−
5
3
b)
−
4
5
-\dfrac{4}{5}
−
5
4
c)
4
5
\dfrac{4}{5}
5
4
d)
16
25
\dfrac{16}{25}
25
16
Browse the problem library