What button on the graphing calculator is arc cos ? – Science

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We don’t know what style, brand, or model of calculator you have, so we can only speculate
and hope we get lucky. Here are two suggestions that may help:

1). In order to save space on the buttons and around them,
“arc cos” is often written as “cos-1“. Look for that symbol.

2). If you obtained the calculator recently, you may have also received a
small booklet with it. In that booklet are all kinds of helpful instructions,
not only for replacing the batteries in the calculator, and getting it fixed
when it dies, but also step-by-step instructions on how to do stuff with it.

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