Question

cos x= 3/12

Answer 1

what about it?

Answer 2

i dont get how you would type that into a calculator

Answer 3

when you have a trig problem with x with the function , switch around the x and the other side and do the inverse cos^-1(3/12),

inverse of cos can usually be found right above the cos button and be used by pushing the 2nd key

Answer 4

what calculator are you using?

Answer 5

i have a scientific calculator , im putting 3 divide 12 but its not coming out to 76 like the example says thats why im confused.

Answer 6

OK do this, do you see the shift button?

Answer 7

yes

Answer 8

press shift then the cos button, on the display you'll see cos-1 then type opening bracket 3/12 then the closing bracket, do you follow?

Answer 9

\[\cos^{-1} (3/12)\]

Answer 10

then press equal sign

Answer 11

i got .25 which isnt the answer was i doing something wrong?

Answer 12

yes, OK lets try first to simplify 3/12 its equivalent to 0.25 right

Answer 13

@kyia

Answer 14

yupp

Answer 15

now follow these steps:
press shift then cos button
type in 0.25
press equal sign

Answer 16

nothing is comping up :/ im sorry

Answer 17

maybe you jumping a step, but if you have a scientific calc and follow the three steps you'll get 75.52 degrees

Answer 18

i pressed SHIFT then i pressed cos typed in .25 and it stayed at .25

Answer 19

i pressed SHIFT then i pressed cos typed in .25 and it stayed at .25
after the 0.25 press =