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

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I am doing math, and would like to know how to

I am doing math and would like to know how to change the mode of the Sine Cosine and Tangent buttons along with their secondary buttons.

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  1. Press the MODE button
  2. On the third line of the configuration screen either Radian or Degree is highlighted.
  3. Use Left or Right arrow to highlight the angle unit you want and press ENTER
  4. If you do not have any other configuration option to change, just press 2ND MODE to QUIT the setup screen.

Posted on May 15, 2010

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Can I figure Sine, Cosine and Tangent on my TI-15?


Not directly. The calculator does not have the trig functions built in. You could do it the same way people did it before pocket calculators, but you can't do it just be pushing one or two keys on this calculator.

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The sine and cosine function have a range between [-1, 1]. The domain of their inverse functions is [-1,1]. So 20/1 which is 20 is out of the domain of definition of the functions. No limitations for tangent and cotangent.

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How to use Texas Instruments TI34II Calculator? Especially I want to now how to use sinus, cosinus, and tangen on it. In Indonesia we call it "sin, cos, tan" Need your help, thanks.


Sinus, cosinus, and tangens (Latin names) are the same as sine, cosine, and tangent (full English names), which are abbreviated to sin, cos, and tan. If you're asking how to use these functions, they deal with right triangles and finding the missing angles or side lengths of the triangle.

Always, sine equals opposite/hypotenuse, cosine equals adjacent/hypotenuse, and tangent equals opposite/adjacent.
king_cole.jpg

Using this picture, the sine of angle A equals a/c, the tangent of angle B equals b/a, and the cosine of angle A equals b/c, and so on.

In a calculator, simply hit the desired function (sin, cos, or tan), then in parenthesis put the measure of the angle, and then use what you know about the triangle to find out the rest.

Mar 03, 2011 | Texas Instruments 30XIISTKT1L1A Calculator

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What does the eng,in,sin.cos,hyp,rcl,abs


You sure will benefit more from your calculator by taking a look at its manual. After all that is what it was created for.

No matter. I am willing to presume that if you are asking about these keys that is because you have not seen the relevant functions yet in your Math courses. One day or another (soon) you will know about them, and I will not go into explaining what they are or what they are used for. (Awfully SORRY)
  1. ENG signifies engineering notation (No I will not explain what it is).
  2. SIN, COS, and TAN are the keys for the trigonometric function sine, cosine, and tangent.
  3. HYP is entered before a trigonometric function key to calculate its hyperbolic counterpart : the hyperbolic sine (HYP SIN), the hyperbolic cosine (HYP COS), and the hyperbolic tangent (HYP TAN).
  4. RCL followed by a letter recalls a value stored in memories, A, B, C, D, M.
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1 Answer

Ive been doing inverse sine, inverse cosine, and inverse tangent problems for a few hours now but all of a sudden when i put in this one problem it gives me: ERR:DOMAIN. im not sure what is wrong... I've...


Since you are familiar with sines, cosines, you know that their ranges (interval of values) varies from -1 to 1. The inverse functions of sine and cosine tkae their values in that very domain, [-1,1].
However you fed the arc sine function (sin^-1) a vlaue of (25/20.48) and that value is obviously larger outside the [-1,1] domain, hence the DOMAIN error message.

No such domain limitations exist for arc tangent (tan^-1) because the range of the tangent function spans the open interval ]negative infinity to positive infinity[.

Nov 02, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

Find length of right triangle given one angle an one length


Formulas relating to right angled triangles are:
Sine = perpendicular divided by hypotenuse
Cosine = base divided by hypotenuse
Tangent = perpendicular divided by base
Sine Tangent and Cosine functions are all available in Excel

Aug 08, 2010 | Microsoft Excel for PC

1 Answer

I am doing math, and would like to know how to change the mode of the Sine, Cosine, and Tangent buttons, along with their secondary buttons.


I am not sure what you mean. The only "mode" I can think of as regards these functions (trigonometric and inverse trigonometric) is the angle unit.
  • Press [MODE] key.
  • In Mode set up screen, use arrow keys to move highlight to degree or radian (whichever unit your problem requires).
  • Use the arrows to move cursor to 3rd line to highlight {degree} and press [ENTER] or radian and [ENTER].
  • Here is a screen capture (Do not worry if you do not have exactly the same screen as in the screen picture)
142a378.jpg
If I guessed wrong about the meaning of your question, do post a comment to this thread before rating the answer.

Mar 18, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

Sine, Cosine, Tangent buttons malfunctioning


you're in radians...
go to MODE
scroll down twice
hit the right button
then hit enter...  :)

May 16, 2009 | Texas Instruments TI-84 Plus Silver...

1 Answer

Graphing trig functions


Put the calculator in radian mode and it will graph trig functions just fine. If you don't know how to change it to radians, then go to mode and cursor over to select radians. I am assuming you know where the sine, cosine, tangent, etc. keys are.

Dec 31, 2007 | Texas Instruments TI-84 Plus Silver...

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