Math Help Forum - View Single Post - TI-89 Titanium: EVALUATING

tupac · #5 August 28th, 2008, 01:54 PM

Quote:

Originally Posted by mr fantastic

The range of the arcos function is not defined over [0, 2pi).

I'm guessing that your question is actually how to solve $\cos \theta = 0.3$ for $0 \leq \theta < 2 \pi$ . You go to the F2 menu and select 1: solve(

Then it's

solve(cos x = 0.3, x)|0<x<2pi

what should i press for my calculator to show: arccsc