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Can I do sin cosign and tangent with the TI-15?

Posted by Anonymous on

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Posted on Jan 02, 2017

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SOURCE: ti-89 titanium SIN!!!!!

The answer that you have received in actuality is correct. However, it is in exact form when the answer that you were looking for was an approximation (decimal form) answer. To achieve this all you have to do is hit the alpha button (the yellow button with a diamond in the center) and then enter which will give you your desired answer :-)

Posted on Jan 15, 2008

supportthe85
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SOURCE: I have a TI-84 Plus

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

Posted on Feb 24, 2009

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1 Answer

Sine, Cosign, Tangent


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.

Feb 12, 2014 | Texas Instruments TI-15 Explorer...

1 Answer

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.

Feb 12, 2014 | Texas Instruments TI-15 Explorer...

1 Answer

How do iuse my casio fx83 to get tangent angle please


To get the tangent of an angle, press "tan", enter the angle, and press "=".
See the example for sin on page E-10 of this manual: http://support.casio.com/pdf/004/fx-82ES_etc_E.pdf, replacing the "sin" with "tan".

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

1 Answer

How do you inter the information to use the Sin, Cos, and Tan functions on the TI-30A?


There are several ways of doing this.

Opposite 12 and hypotenuse 13, so the sine of the angle is 12/13. Press 1 2 / 1 3 = 2nd [SIN^-1]

Adjacent 5 and hypotenuse 13, so the cosine of angle is 5/13. Press 5 / 1 3 = 2nd [COS^-1]

Adjacent 5 and opposite 12, so the tangent of the angle is 12/5. Press 1 2 / 5 = 2nd [TAN^-1].

Jun 08, 2012 | Texas Instruments TI-30XA Calculator

1 Answer

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

1 Answer

Using inverse cosign and inverse sin always bring up domain errrors. For example, I used the equation COS -1(185 / -20) . And it always came up with domain error. This is the same equation my teacher gave...


Make sure your calculator is in degree mode.
It is probably in radian mode so it can't calculate the inverse sin.
To change this, go to Mode -> Deg.
Hope this helps, cheers!

Mar 06, 2011 | Texas Instruments TI-30 XIIS Calculator

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...

2 Answers

How do I put cosecant, secant, and cotangent functions into my ti-84 plus?


By definition
  1. cosecant of X =1/sin(X), must not be confused with arc sine [sin^-1]
  2. secant of X =1/cos(X), must not be confused with arc cosine [cos^-1]
  3. cotangent of X =1/tan(X), must not be confused with arc tangent [tan^-1]
Because of these simple relations, calculator makers do not implement them with specific key sequences.
On this calculator, you have two ways to calculate one of these functions. EX cosecant of 37 degrees
  1. You enter 1 / [sin] 37 [ ) ] [ENTER] result is 1.661640141
  2. You enter [sin] [ ) ] 37 [ENTER] followed by [X^-1] to take the reciprocal of the previous answer. The [X^-1] key is the one just below [MATH].
A word of caution: secant cosecant and cotangent must not be confused with the inverse trigonometric functions arcsin, arccos, arctan

Jan 21, 2010 | Texas Instruments TI-84 Plus Calculator

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