Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

# After you have enter the inverse of sin into the calculator, how do you get the degree of that angle?

I keep getting a decimal number, how do I convert it to degrees? My problem is inverse of sin 42/57.

Posted by Anonymous on

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• Texas Instru... Master

Make sure the calculator is set to degrees. Press MODE and ensure that "DEGREE" is highlighted on the third line. Press 2ND QUIT to get out of the mode screen.

To calculate the inverse sine of 42/57, press
2ND SIN^-1 4 2 / 5 7 ENTER

The arcsine of 42/57 is about 47.46 degrees.

Posted on Apr 16, 2014

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Posted on Jan 02, 2017

No DMS button

1degree 22.25 minutes
2nd Math F3 1 F1 22 f3 15 f3 enter

Posted on Nov 25, 2008

SOURCE: I have a TI-84 Plus

Like the TI-85, it would be in the MATH menu.

Posted on Feb 24, 2009

SOURCE: Trig Functions and Angles

What is wrong? Are you not getting the right answers? If so, your calculator is set on radian, not degree.

Posted on May 13, 2009

If you are trying to calculate arcsine (sin^-1) and arccosine (cos^-1) the only whole number you can use are -1,0 and 1. This due to the fact that the domain of these functions is the closed interval [-1,1]. Any value outside that interval will trigger an error message. No limitation on the argument of the arc tangent or arc cotangent functions

If the angle unit is set to degree the arc will be in degrees, and if angle unit is radian, the arc will be in radians.

Posted on Sep 29, 2011

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## Related Questions:

### How can i calculate sin cos tan and see the result in degree mins and seconds in my calculator kadio kd82lc

When you calculate the sine cosine and tangent, the results you get are pure numbers: They have no dimensions or units because sin cos and tan are ratios of lengths.
However if you are calculating inverse trigonometric functions the results are angles, and they have units.
Use the mode key to set the angle unit to degree. after you calculate the inverse trigonometric functions, your results will be expressed in the angle unit you set in the configuration. If angle unit is degree you will get decimal degrees. To convert to DMS, use the key to the right of the change sign key (-). It is marked with degree symbol followed by what looks like a a double quote and a single quote.

Mar 18, 2012 | Office Equipment & Supplies

### Error when using inverse trig inever used to get these errors when trying to find angles using whole numbers inside the inverse trig functions but now it will only calculate SOME fractions. wether the...

If you are trying to calculate arcsine (sin^-1) and arccosine (cos^-1) the only whole number you can use are -1,0 and 1. This due to the fact that the domain of these functions is the closed interval [-1,1]. Any value outside that interval will trigger an error message. No limitation on the argument of the arc tangent or arc cotangent functions

If the angle unit is set to degree the arc will be in degrees, and if angle unit is radian, the arc will be in radians.

Sep 27, 2011 | Texas Instruments TI-84 Plus Calculator

### How can I find sin 45degrees 20 minutes using a fx-9750G PLUS calculator?

The problem is not finding the sine of the angle but expressing the angle in Degree Minutes Seconds instead of decimal degrees.
1. In RUN screen press [SIN] function key
2. Press [OPTN]
3. Press [F6] to get to next page of menus.
4. Press [F5:Angl]
5. Enter 45 and press [F4: degree ' "]
6. Enter 20 and press [F4: degree ' "]
7. If you have seconds to enter, type in value and press [F4:degree ' "]
8. Press [EXE] to get your result.

This procedure will give you the sine regardless of the angle unit the calculator is configured for.

Sep 30, 2010 | Casio FX-9750GPlus Calculator

### For get the life of me I can not figure out how to get the degree of a cos angle. For ex. cos theta = 6.5/25 = 0.26 now how do I find the degree? Shouldnt it be 2nd key + cos + 0.26 + enter? the answer...

When using trigonometric functions (cos, sin, tan) and their inverses (arccos, arcsin, arctan) one must be aware that the result will depend on the default angle unit : radian, degree, or grad.

Apparently you are working with the degree as the angle unit, so you must configure the calculator for that unit. (See screen capture below)
Press [SHIFT][MODE] [3:Deg]

Jul 29, 2010 | Casio FX-115ES Scientific Calculator

### How do you use the sin-1

You would press on the SIN key, "sin(" should come on the display, then enter the value, for example 3.5 or -1 so that the display shows

sin(3,5) or sin(-1) for example.

remember to close the sin with the ) on the end.
sin(-1) = -0.841470985

Feb 16, 2010 | Texas Instruments TI-30XA Calculator

### I am getting the wrong answers with the tan -1 function

Hello,
That habit of TI, Casio, and Sharp to label the inverse trigonometric functions with the -1 superscript can cause confusions.
1. The inverse trigonometric functions arcosine, arcsine, and arctangent (labeled by manufacturers as cos^-1, sin^-1, and tan^-1) should not be confused with the other trigonometric functions known as secant(x) =1/cos(x), cosecant(x)=1/sin(x) and cotangent(x) = 1/tan(x).
2. To avoid errors in the use of the inverse trigonometric functions, one must be careful and set the angle unit to the one required by the problem at hand (degrees, or radians)
3. To make the trigonometric functions really functions, their range is restricted.
4. In this calculator arcosine (x) gives results between 0 and 180 degrees (if angle MODE is Degree) or between 0 and Pi radians (if angle MODE is Radian).
5. The range of results for arcsine(x) and arctangent(x) is between -90 degrees and +90 degrees (if angle MODE Degree) or -Pi/2 and Pi/2 (if angle MODE is Radian)
With this information you should be able to set the angle unit correctly ([MODE][Radian] or [MODE][Degree] ) and interpret the results. If you want to extend the angle to other values, use the periodicity of the trigonometric functions.

Hope it helps

Nov 06, 2009 | Texas Instruments TI-83 Plus Calculator

### How to use the cosine,tangent etc functions of calculator fx-82ES plus

Hello,

2. Press the key for the function COS, SIN, or TAN
[COS] displays Cos(

3.Enter the angle 12 deg Screen shows cos(12
Close the right parenthesis ) Screen shows cos(12)
4.Press [=] Screen displays 0.9781

If you want the inverse trigonometric functions you access them with arccos [SHIFT] [COS] (cos^-1)
arcsin [SHIFT][SIN] (sin^-1)
actan [SHIFT][TAN] (tan^-1)

You have to know the principal domain for the inverse trigonometric functions (see any book on trigonometry) to understand the results.
Hope it helps.

Nov 05, 2009 | Casio Office Equipment & Supplies

### I keep getting ERR:DOMAIN when ever i do the inverse sin

inverse sine (sin^-1) gives you the angle when the opposite side length and the hypotenuse, in relation to that angle, are given. therefore, if you want to do sin^-1(x), 0<x<1 for all real triangles ex. sin^-1(1/2) would equal 30. if you get a decimal, then go to [Mode] and select degrees instead of radians to get angle measures instead of radians... :)

Apr 23, 2009 | Texas Instruments TI-83 Plus Calculator

### "Err: Domain"

I think you may find arcsin(x) is equivalent in older nomenclature to sin^-1 (x)...ie use the "2nd" and the SIN key instead of typing arcsin.
eg. arcsin(0.5) is 30 degrees is the same as sin^-1(0.5)
The ^-1 does not mean reciprocal, but "the angle whose sin is." Here the minus one indicates a kind of inverse operation. The word arcsin indicates that same inverse.

Mar 23, 2009 | Texas Instruments TI-89 Calculator

### Problem with Casio FX 260 Calculator

Read the screen capture about the MODES of this calculators. DEG,RAD, and GRAD remind the user that the angle units in trigonometric function calculations and coordinate conversions are in degrees, radians or grads. They have nothing to do with the other calculations you are doing.

You can only remove DEG by changing the angle unit to RADians or GRADs. In so doing, the new unit indicator (RAD, GRAD) will be displayed instead. There is no point worrying about the angle unit indicator unless you are performing coordinate conversions or calculating trigonometric functions or the inverse trigonometric functions.

MODE 9 cancels the FIX display format: decimal are displayed with a fixed number of decimal places (set by the user). After this key sequence the decimal display format reverts to NORM(al).

Dec 03, 2008 | Casio FX-260 Calculator

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