Question

cos(16 degrees)=

Answer 1

Well, you can just input this into a calculator? Or do you need so solve it without?

Answer 2

you can get the value of cos 16 using your calculator..

Answer 3

well it has to come out as a squareroot

Answer 4

and i dont have a calculator

Answer 5

http://www.wolframalpha.com/input/?i=cos%2816degrees%29

Answer 6

an online calculator will do

Answer 7

Yeap, wolframalpha is a great tool online.

Answer 8

it is

Answer 9

it isnt showing any of the answers i need

Answer 10

anyone have a kik so that we could just do it over that possibly

Answer 11

Do you have any choices?

Answer 12

yes but i cant type them into the software

Answer 13

Well, \[cos(16degree)=0.9612617=\sqrt{0.9240241}\] Dont know if you can use that

Answer 14

no they all have a cos under the square root sign

Answer 15

Well, the only thing I can come up with is using Pythagoras theorem: \[a^2+b^2=c^2\] \[a=\sqrt{c^2-b^2}\] We know c=1 and b=sin(16degree) \[a=\sqrt{1^2-sin(16degree)^2}\]Maybe you can rewrite this into something, but I am not sure.

Answer 16

thanks i have more so