Question about Casio FX-9750GII Graphing Calculator
I changed the mode to decimal and tried to find and answer to a function in that form, but it doesn't let me type the inverse of sin cos and tan.
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Mar 18, 2012 | Office Equipment & Supplies
Let's start with a little background.
The cot(x) is also known as the cotangent(x) and it equals 1/tan(x) which equals cos(x)/sin(x). I'm showing these formulas because your calculator may not have a cot button but it will probably have buttons for tan, cos, and sin.
Your calculator may also have buttons for tan-1, cos-1 and sin-1. These are the inverse functions for tan, cos, and sin. If you enter a number and then push the tan-1 button, the result is the angle whose tangent is the entered number. For example, it you enter 1 and push the tan-1 button the answer will be 45 deg because tan (45 deg) = 1.
Now let's look at the problem, cot(x) = -0.6.
The first thing we need to know is do you want the answer in degrees or radians? Your calculator will have both modes. The default mode when you first turn it on is probably degrees. If this problem is in radians you will need to change the mode of your calculator over to radians before we start.
If cot(x) = -0.6, then tan(x) = 1/-0.6 from the formula I showed in the background section.
This means tan(x) = -1.6666666...
Now we just enter -1.66666667 and hit the tan-1 button to get the answer.
If we're operating in radians the answer is -1.0307 radians.
If we're operating in degrees the answer is -59.036 deg.
I hope this helps you out.
Dec 06, 2011 | SoftMath Algebrator - Algebra Homework...
Mar 09, 2011 | Texas Instruments TI-30XA Calculator
Jan 15, 2011 | Casio FX-115ES Scientific Calculator
Jan 06, 2011 | Casio FX-115ES Scientific Calculator
Dec 14, 2010 | Texas Instruments TI-83 Plus Calculator
Aug 26, 2010 | Casio FX-115ES Scientific Calculator
Apr 14, 2010 | Casio FX-9750GPlus Calculator
Nov 05, 2009 | Casio Office Equipment & Supplies
Aug 14, 2009 | Casio FX-115ES Scientific Calculator
186 people viewed this question
Usually answered in minutes!