Question

What is csc (2pi/3)?

Answer 1

1.15

Answer 2

check your Unit Circle :)

Answer 3

is it -1/2, sqr3/2 ?

Answer 4

@jdoe0001

Answer 5

recall, get the sine value maybe
csc(a) = 1 / sin(a)

Answer 6

i dont get it

Answer 7

that is what it is, csc(angle) = 1 / sin(angle)

the sine value is the y coordinate for points on this circle, look for angle 2pi/3 and get the value for sine

Answer 8

its 120 degrees

Answer 9

yes, need the value of the coordinate on the circle there, sine is the y value

Answer 10

since the radius is a 1, each point on the circle is (x,y) = (cos(a) , sin(a))

Answer 11

at 2pi/3 angle, sin(2pi/3) = root(3)/2

Answer 12

you see that value there in the point for y

Answer 13

i have to run... you have the sine value now, use it for the csc value

csc(2pi/3) = 1 / sin(2pi/3) = 1 / [root(3)/2] = 2/ root(3)

rationalize the denominator if you want to

2root(3) / 3