Question

Help

Answer 1

If cos \[\theta=0.856 \]

Answer 2

how would i find theta to the nearest degree?

Answer 3

With the inverse cosine function

\[\cos^{-1} (\cos \theta) = \theta\]

Answer 4

calculatior for the inverse cosine of that 0.856

Answer 5

So where would I plug 0.856?

Answer 6

\[\theta=\cos^{-1} (0.856) \approx\]

your calculator should have that inverse cosine function

Answer 7

Thanks man

Answer 8

@DanJS

Answer 9

http://web2.0calc.com/

Answer 10

i plugged in what you said and i got an answer and it says it was wrong :/

Answer 11

i got 0.999888 etc

Answer 12

not sure what you did, or how to get to the second function on that web calc for the cos^-1

should get about 31 degrees

Answer 13

31?

Answer 14

How? Im confused .-.

Answer 15

i have another problem like this and now its 1/2

Answer 16

instead of 0.856

Answer 17

here is a inverse cosine calc, arccos
http://www.rapidtables.com/calc/math/Arccos_Calculator.htm
not sure , it depends on your calculator, the cos^(-1) function

Answer 18

Thanks again man