Question about Texas Instruments TI-30 Xa Solar Calculator

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Posted on Jan 02, 2017

Press [2nd][MODE] to enter the default setup screen. On the third line Radian, Degree, highlight degree and press ENTER. From then on, angle values will be interpreted as degree values.

Feb 26, 2012 | Texas Instruments TI-86 Calculator

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...

Tangent is a trigonometry term. It is used to find the Opposite/Adjacent ratio when given an angle measure in a right triangle. The proper syntax is tan(angle measure).

Dec 17, 2009 | Computers & Internet

Press SHIFT [ATAN] whatever ENTER

ATAN stands for arctangent (inverse tangent, tan^(-1)) and is the shifted function of the tangent key.

ATAN stands for arctangent (inverse tangent, tan^(-1)) and is the shifted function of the tangent key.

Aug 27, 2009 | HP 39g Calculator

because cotangent, cosecant, and secant are all inverse trig functions, just type in 1 / |shift| trig function and the number if you are finding the angles. It might not be a dedicated button, but its an extra push, and it will give you the same result. *note that I put the shift press only because that is how you get the inverse tan to get an angle from a tan ratio.*

May 04, 2009 | Casio FX-270W Calculator

I don't have a Cot button but Cot x = 1/Tan x so enter

1/Tan 78 = 0.212556 etc if you have a fraction button you can write it that way too:

1 frac button Tan 78 = 0.212556 etc

1/Tan 78 = 0.212556 etc if you have a fraction button you can write it that way too:

1 frac button Tan 78 = 0.212556 etc

Jun 16, 2008 | Sharp EL-531VB Calculator

Just enter using this style

**TIME IN**
**TIME OUT**
** HOURS**
10:00
16:50
6:50
10:22
17:34
7:12
9:00
10:00
1:00

the formula in HOURS is Time Out - Time In

the formula in HOURS is Time Out - Time In

Mar 20, 2008 | Computers & Internet

When performing the calculations, put the fractions in parentheses. Then once you get your answer, press 2nd and Math (above the times button). Then press F5, MORE, and F1. It will have Ans Frac>. Then hit Enter and it'll change it to a fraction.

Feb 03, 2008 | Texas Instruments TI-86 Calculator

37 is in degrees. so if your dealing with degrees you need to go to and change the mode. hit the mode button next to the 2nd button and go down to and change it from degree from radian by going to degree and hitting enter

Dec 05, 2007 | Texas Instruments TI-83 Plus Calculator

here are the steps in changing it from radian to degrees

1. turn on your TI-83 plus

2. press the MODE button near the top of your calculator

3.go down to options and move the highlight from radian to degree, press enter and clear

you're good to go

1. turn on your TI-83 plus

2. press the MODE button near the top of your calculator

3.go down to options and move the highlight from radian to degree, press enter and clear

you're good to go

Feb 17, 2007 | Texas Instruments TI-83 Plus Calculator

Sep 06, 2010 | Texas Instruments TI-30 Xa Solar...

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