Question about Texas Instruments TI-83 Plus Calculator

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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

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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.

Posted on Sep 15, 2010


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Sin cos tan ti 83

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

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Aug 09, 2013 | Texas Instruments TI-83 Plus Calculator

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How do I find the csc of an angle

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Nov 04, 2012 | Texas Instruments TI-84 Plus Silver...

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When I try to solve a sine, cosine, or tangent problem, it comes out differently than the real answer. Other keys work fine though... ex: sin(37) Real: .6018 Mine:-.6435 How do I fix this?

When you use trigonometric functions you should always make certain that the angle unit the calculator is configured for is the intended one.
When the unit is set to degree sin(37)=0.6018
When the angle unit is set to radian, sin(37 rad)=-0.6435

Change the angle unit to degree.
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  2. Scroll to reach the Angle line.
  3. Use right arrow to highlight deg and press ENTER to validate.

Jun 09, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

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

1 Answer

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

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.

Sep 10, 2010 | Texas Instruments TI-83 Plus Calculator

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

1 Answer

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Alot of people seem to be having this problem. Angles can be measured in two units, degrees and radians. Your calculator is currently doing everything in terms of radians. I have an 84 but I'm sure the 83 is similar, go under MODE and look for Degrees and Radians and make sure you choose degrees. if you have to convert 360[degrees] = 2* pi [radians]
(easy to remember, 360deg in a circle, 2pi radians in a circle)
Good luck

Aug 11, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

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