cos 1.43
The answer is 0.1403
I forgot how did I do to get the answer. Can someone please tell me step by step on how to do it in a calculator. Not in graphing calculator. thanks.
RealPro
This may blow your mind but USUALLY what I do to evaluate cos 1.43 is I hit the buttons, in order
cos
1
.
4
3
=
Super strange I know.
But
You have to make sure your calculator angle mode is in RADIANS.
Because you are evaluating cos1.43 and not cos1.43°
Students that can spell "trigonometry" can usually figure out how their calculator works, perhaps just try it and see.
?
set calculator to radians
input 1.43
press cos
billrussell42
depends on the calculator. Typically:
enter 1.43
hit cos key
answer appears as 0.1403316
rounded to 0.1403