<p>Should I just leave my calc in a+bi mode for the Math II test or will that mess up stuff?</p>
<p>What would that be good for? Questions with imaginary numbers on the test are way too easy to justifty that.
and wouldn’t this mode screw up your xy-plane?</p>
<p>anyway, where can you switch to that mode on the TI89?</p>
<p>My barrons said it’s best to keep it in the “a+bi” mode but if you aren’t familiar with it, then I suggest don’t use it. just take a couple of practice tests or do some problems involving unreal numbers and see if it works for you.</p>