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I am using a TI84 and doing trig functions. Tangent in particular. I keep getting different answers from classmatez, yet we're typing it in our calculators the same. Whats wrong?

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Push the "mode" button and look at the third row. you should propably have it standing on "Radian" instead of "Degree".. It was a few years since i used my TI-83 but i remember thath ther's a difference between those two!!! =P

Posted on Aug 25, 2010

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1 Answer

Why is my ti84 giving me wrong answers when I use trig functions?


Your right you should be in degree mode. However, my guess is you are somehow entering in cot wrong in your calc. Recall cot = 1/tan! In your graphing calculator enter: 35(1/tan(61) = 19.4.
Hope this helped!

Jul 09, 2014 | Texas Instruments TI-84 Plus Calculator

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...

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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.

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

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Were is trig on casio fx9750ii graphic calculator


The basic trig functions are on the first full row of keys below the circular cursor pad, labeled "sin", "cos", and "tan" for sine, cosine, and tangent.

Aug 11, 2012 | Casio FX9750GII Graphic Calculator

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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

Mar 18, 2012 | Texas Instruments TI-Nspire Graphic...

1 Answer

Answers to trig functions are incorrect. i.e. tan 30 deg = -6.40 vs 0.54


You're in radians mode. The tangent of 30 radians is about -6.4.

To switch to degrees, press MODE to bring up the mode editor. Use the arrow keys to move down to the third line, highlight Degree, and press ENTER. Press 2ND [QUIT] to exit.

Sep 24, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

What is d use of hyp function??


The hyp key is used with the cos, sin, and tan keys to compute the hyperbolic cosine, hyperbolic sine, and hyperbolic tangent functions (and their inverses).

The hyperbolic functions are computed the same way as the trignometric functions: simply press the hyp key just before pressing the desired trig key.

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1 Answer

Inverse Functions on Casio fx-270W PLUS don't seem to work


because cotangent, cosecant, and secant are all inverse trig functions, just type in 1 / |shift| trig function and the number if you are finding the angles. It might not be a dedicated button, but its an extra push, and it will give you the same result. *note that I put the shift press only because that is how you get the inverse tan to get an angle from a tan ratio.*

May 04, 2009 | Casio FX-270W Calculator

1 Answer

Trigonometric function


The 3 trig functions most commonly
used in triangle calculations are


sine = Opposite/Hypotenuse Co secant = Hypotenuse/Opposite

Cosine = Adjacent/Hypotenuse The reciprocals are Secant = Hypotenuse/Adjacent

Tangent = Opposite/ Adjacent Cotangent = Adjacent/Opposite


Hope this helps Loringh

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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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