Find the cosine and sine of 180o. Round your answers to the nearest hundredth if necessary.

A. -0.71, -0.71
B. -0.71, 0.71
C. 0, -1.1
D. -1, 0

Question

Find the cosine and sine of 180o. Round your answers to the nearest hundredth if necessary.

  A. -0.71, -0.71 	
  B. -0.71, 0.71 	
  C. 0, -1.1 	
  D. -1, 0

nottim · Answer

Are you allowed to use a calculator?

alex6799 · Answer

attachment

alex6799 · Answer

yes

nottim · Answer

Do you know what to do then? Or at least, waht do you think it is?

alex6799 · Answer

no i have no clue :(

anonymous · Answer

Well if you are allowed to use a calculator then, make sure it is in degree mode
Then find the sin and cos buttons,
Press sin and then type in 180
Do the same with cos

nottim · Answer

Enter it into you calculator as such (IN DEGREEES MODE) "cos180"

anonymous · Answer

If you need help making sure it is in degree mode, if you tell me which model of calculator you have, I can help you find it

alex6799 · Answer

ok then what

anonymous · Answer

That's your answer
when you type in sin180 or cos180 press enter
Whatever number comes out is your answer

alex6799 · Answer

wait i got -1....so its D?

anonymous · Answer

Yep

anonymous · Answer

Assuming the first of the numbers in D is the value for cosine

alex6799 · Answer

i didn't understand what you just said

anonymous · Answer

Nevermind disregard that

anonymous · Answer

D is the correct answer

anonymous · Answer

You were right

alex6799 · Answer

thank you so much are you going to be on for a few mins? I'm taking a text and if i have a problem id like it if you would help me understand it