Question about Texas Instruments TI-83 Plus Calculator

# I am trying to type in x^4-2sin^2(x) on my ti-83 plus. Unfortunately, it will not let me put the ^2 directly after the sin

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The calculator treats sin(x) as a single unit. You have to enter it as "sin(x)^2". Be careful you don't enter it as "sin(x^2)", which is "sine of x^2". If you want to be sure, you can put in an extra set of parens and go with "(sin(x))^2".

Exponentiation of trig functions is a funny bit of notation. Rarely does the exponentiation operator go into the middle of an expression.

Posted on Sep 10, 2010

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## Related Questions:

### How do I put in Sin^2 ?

sin(x)^2

sin^2 and its kkn are an unusual notation, compared with other functions. For example, you don't write log^2(x) but instead log(x)^2.

Oct 12, 2016 | Texas Instruments TI-83 Plus Calculator

### Sin cos tan ti 83

Make sure you have the proper angle mode set. Press MODE and check the third line.

Feb 03, 2014 | Texas Instruments TI-83 Plus Calculator

### I can not find the arc key or the INV key

The INV key that you may find on some scientific calculators has, on the TI 83/84/ Plus calculators, an equivalent key marked [2nd].

On the TI83/84 Plus, each trigonometric function has a second marking [SIN^-1], [COS^-1] or [TAN^-1]. To calculate the inverses of trigonometric functions ( arc sine, arc cosine, arc tangent) you press [2nd] followed by the relevant trigonometric function key For example, [2nd] [SIN] displays sin^-1( on the command line.

Unfortunately the hyperbolic functions and their inverses are only accessed through the CATALOG. You press [2nd][0] to open the CATALOG. Then you scroll down the CATALOG list to reach cosh(, cosh^-(, sinh(, sinh^-1(, tanh(, or tanh^-1(.
To speed the search in the catalog, you use the ALPHA keyboard: To reach cosh(, press[PRGM] and you scroll down from there.

Feb 27, 2012 | Texas Instruments TI-84 Plus Calculator

### How do i work out the Sin, Cos, and Tan on the TI-83 plus?

First, make sure you have the appropriate angular mode set. To change the angular mode, press MODE, use the arrow keys to highlight either "RADIAN" or "DEGREE" on the third line, press ENTER, then press 2ND [QUIT].

Press the appropriate sin, cos, or tan key (two rows above the 7, 8, and 9 keys), enter the angle, close the parenthesis, and press ENTER. For example, to calculate the sin of 2.1, press
SIN 2 . 1 ) ENTER

Jun 07, 2011 | Texas Instruments TI-83 Plus Calculator

### Example - I know that Sin A = 0.9622 - how to I get the angle A? I need every single calculator step. I have a TI-83

First, set the calculator to whatever angular mode you want. Press MODE, down-arrow twice, and highlight RADIAN or DEGREE. Press ENTER to select it and then 2ND [QUIT] to exit the mode editor. Now, use the arcsine function by pressing 2ND [SIN^-1] . 9 6 2 2 ENTER and read the angle on the screen.

Sep 15, 2010 | Texas Instruments TI-83 Plus Calculator

### Cannot calclate sin cos tan with texas inst ti-83 plus

To put it in Scientific mode, press MODE then use your right arrow to move your cursor one spot to SCI. Press ENTER then press CLEAR.

May 31, 2009 | Texas Instruments TI-83 Plus Calculator

### How do you do this

(-3/4)-(-2/5)

You MUST put parenthesis around fractions in a TI-83. If you have a fraction with multiple parts in the numerator or denominator, you MUST put parenthesis around either the numerator or denominator (depending on which one has multiple parts).

E.G.:
X*Y-L/N
Should be Typed
((X*Y-L)/N)

Make Sense?

Jan 28, 2009 | Texas Instruments TI-83 Plus Calculator

### Need help withe the sin, cos, tan problem with ti - 83 plus

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

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

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