- #1
brown.ty
- 2
- 0
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.
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!
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!
