Hello, I am new to the TI-Titanium and have run into a few rather simple obstacles that are keeping me from answering physics questions in the correct way.(adsbygoogle = window.adsbygoogle || []).push({});

First off, by typing:

\sqrt(5)

the answer comes out to:

=\sqrt(5)

as opposed to 2.2360...

(I believe this is a setting/mode issue)

Secondly, I have a simple trig function:

tanθ=2/1

to solve, I typed:

tan^{-1}(2/1) as one would do and the result was:

(-90*(((tan^{-1}(1/2)-pi)/90)-pi)/pi

Now this answer seems to be in radians, and so I changed the setting to degrees..still I get this same answer.

The actual textbook answer was:

θ=63.4°

Why is this happening?

If anyone could tell me what it is I have to do in order for my TI-89 to answer these problems in the way I'd like them to be answered I would greatly appreciate it!

Thanks in advance!

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# Calculators TI-89 Titanium Function Issues!

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