Question

using the unit circle, what is the value of cot (pi/2) ?

Answer 1

i only know how to use it for cos and sin

Answer 2

cotan= adj/opp

Answer 3

1/[tan(pi/2)]

Answer 4

is it the same thing as the previous just more simple?

Answer 5

find a unit circle online

Answer 6

http://image.tutorvista.com/cms/images/38/unit-circle.JPG

Answer 7

@skellaXmoon no because you are not looking for theta this time

Answer 8

cot = 1/tan

cot(pi/2)=36.4665

Answer 9

oh..trig is so confusing >~<

Answer 10

i think it should be 0

Answer 11

How you get 0?

Answer 12

http://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Unit_circle_angles_color.svg/720px-Unit_circle_angles_color.svg.png

Use this

Answer 13

@skellaXmoon are you using a calculator?

Answer 14

use the unit circle

Answer 15

no for this section of the review i cant use a calculator