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Mathematics 9 Online
OpenStudy (anonymous):

Use a calculator to find the values of the inverse function in radians. tan^-1 (3.23)

OpenStudy (anonymous):

I entered it in & got 1.27, but was that it or is there more to it?

OpenStudy (phi):

that is all there is to it. You did change from degree mode to radian mode, I assume

OpenStudy (anonymous):

Yes, but my answer choices have either 2pn, or just pn at the end to it & I don't know where that comes from

OpenStudy (phi):

I think that is pi not pn

OpenStudy (anonymous):

I dont know they put 'pn' at the very end of 3 of my answer choices

OpenStudy (phi):

what are your choices?

OpenStudy (anonymous):

A. 1.27 + 2pn B. 1.27 + pn C. 0.30 + pn D. No such angle exists.

OpenStudy (anonymous):

It makes more since with me to go with B.

OpenStudy (anonymous):

sense*

OpenStudy (phi):

OK, that is n*pi as in n*3.14159.... n is any integer. they want you to know that the tangent of an angle repeats every pi radians if you save 1.27... (plus all the digits you left off) and add pi (a key on your calculator) and take the tan of that number, you should get back 3.23

OpenStudy (phi):

and yes the answer is B.

OpenStudy (anonymous):

I did that & got 3.23. thanks!

OpenStudy (phi):

You could also do f you save 1.27... (plus all the digits you left off) and add 10*pi (any multiple of pi) and it will work.

OpenStudy (anonymous):

That worked also

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