Question

Please help! angle A in Quadrant II, cos A = -7/25
2 A terminates in Quadrant
a. I
b. III
c. IV
d. II

Answer 1

is it asking for cos(2a)'s quadrant?

Answer 2

retype question again I think you might be missing something here??

Answer 3

that is my question as well

Answer 4

Using the given data, find the values of sine, cosine, and tangent of 2 A and the quadrant in which 2 A terminates: angle A in Quadrant II, cos A =
2 A terminates in Quadrant

Answer 5

I am thinking the answer is three agree or not?

Answer 6

How did you come to thinking three?

Answer 7

just tell me if I am think right here or not. Terminates means goes to zero right? or I am confussed?

Answer 8

you there??

Answer 9

Maybe this will help with your understanding? http://www.themathpage.com/atrig/unit-circle.htm

Answer 10

sorry about this,but by helping others it is helping me with my review as well of trig

Answer 11

I know trig just have not used it in a while is all.

Answer 12

rusty you could say I am

Answer 13

Oh it's all good. I understand. And I appreciate your help. I just wish I could understand. Haha, @Outkast3r09 Do you have input? Could you maybe clarify the answer?

Answer 14

look at the circle and see where all three of them are zero.

Answer 15

this where sign,cos and tan are zero on the circle

Answer 16

what quad is this?

Answer 17

recall the unit circle has four quads to it.

Answer 18

No i'm having trouble understanding the question

Answer 19

i thought terminates means resides in but it already tells you where angle A resides in.... however if the question is where 2A resides in

Answer 20

or is it saying that Question #2) A terminates ...

Answer 21

yeah I am having that same issue here as well.

Answer 22

I thought it meant to go to 0

Answer 23

that is why I am saying I think the answer is three

Answer 24

So b.

Answer 25

Correct? Thanks for the help guys!

Answer 26

yes that is right