Question about Casio FX-9860G Graphic Calculator

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When finding the inverse tangent of a number, how can i get the answer to appear in degrees?

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You must configure the default angle unit to be degree.
In Run screen press the [SHIFT][MENU] to access the (SetUp) screen. Use the down arrow to scroll till you highlight the line Angle. The bottom of screen will then display three tabs at the bottom. Press the [F1] key to select [Degree].

when finding the inverse tangent - ddcf5ea.jpg

Posted on Sep 07, 2010

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My tangent is lower than the real tangent number on Casio fx-9750gii


The tangent of 60 radians is about 0.32, while the tangent of 60 degrees is about 1.73. To change the angular mode, press SHIFT [SETUP], down-arrow to the "ANGLE" line and then press the function key corresponding to the desired mode.

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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.

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I keep getting the wrong answers to trignometry equations on my TI-nspire touchpad


You can see on the images below graphs of the function y=tan x and y=arc tan x and calculations for your problem


y=tan x
3_23_2012_2_09_39_pm.jpg
3_23_2012_2_17_00_pm.jpg



y=arc tan x
3_23_2012_2_18_20_pm.jpg
3_23_2012_2_18_47_pm.jpg

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1 Answer

The tangent and inverse tangent offer the incorrect sollution. whould i simply get a new calculator?


No, you don't need a new calculator. Yours simply has the angular mode set to grads. The inverse tangent of 1 is 50 grads, the inverse tangent of sqrt(3) is 66.6... grads.
To change the angular mode, press MODE one or more times until you get the display "Deg Rad Gra". Select the mode you want (from the results you're expecting, it's 1 for Deg).

Jan 26, 2012 | Casio FX-300MS Calculator

1 Answer

Sharp el-501w figure degree on rise run seven inch rise tweve inch run = ? degree


If you have learned about the trigonometric ratios (sine, cosine and tangent) you can use the tangent of the angle.
Let your run be to the right ( along the positive x-axis) and the rise be upwards along the positive y-axis. The tangent of the angle is
tan (theta)=rise/run=7.5/12
If the calculator is set with angle unit in degrees, the angle is obtained as the arc tangent of the (rise/run) value.

theta= arctan(7.5/12)=32.00538321 or about 32 degrees.

The arctan is the inverse of tan. To access it on the calculator press [2nd F][tan]
Depending on the calculator (sorry I do not have your model under my eyes)
Press [2nd F][tan] ( 7.5/12) [=]
or
7.5/12 = then [2nd F][tan] [ALPHA][Ans] [=]

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1 Answer

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.

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1 Answer

How will you find cot inverse value in casio fx-350ms?


There is no Inverse Cotangent on the Calculator, but you have Inverse Tangent.

Cotangent is just the reciprocal of tangent.

nathane35_3.jpg


Just inverse the fraction and use inverse tangent to get its cotangent. Hope this helps.

Jun 17, 2011 | Casio FX-300MS Calculator

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How do I find the tan of an angle and given the tan value, how do I find the angle


To find the tangent of an angle:

  1. input TAN (it's up one and left one from the division key)
  2. then the desired angle
  3. then a close parenthesis
  4. And then hit ENTER

To find the inverse tangent:

  1. Press 2nd
  2. Press TAN (TAN-1)
  3. Enter the desired tangent value
  4. close parenthesis
  5. hit enter

this will give you the angle that yields that tangent value.

You might have to switch your calculator from radian to degrees or from degrees to radians to get the expected result. To do that:

  1. Press MODE
  2. Scroll down to where it says ANGLE
  3. change it from either RAD or DEG

Good luck

Mar 01, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

How do I find inverse sine, cosine and tangent in degrees


First, make sure the calculator is set to degrees (2nd [FORMAT] down-arrow).

Put in the value, press INV, the appropriate function key, and =.

For example, to find the inverse sine of .3, press
. 3 INV [SIN] =

Dec 03, 2010 | Texas Instruments BA-II Plus Calculator

1 Answer

I have a TI 84 plus silver ed. I am trying to find out the inverse tangent. How do I get the answer in degrees?


Hello,
The inverse tangent or arctangent shares the ame key as tan. You access it by pressing [2nd][tan] number [)] [ENTER]. Be warned! The angle value displayed is the same as the one set in [MODE].
Hope it helps

Oct 15, 2009 | Texas Instruments TI-84 Plus Silver...

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