Question about Texas Instruments TI-36 X Solar Calculator

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Cosec Function I do not kow how to use Cosec with my Calculator. CosecLx(latitude desired) = Cosec Lv(latitude of Vertex) x Sec Dvx (distance of the vertex) Cosec Lx = Cosec 37.593 x Sec 10 degrees I got it worked out with a program. My question is how to use the functions on my TI-36X. Cosec??? and Sec???

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Re: Cosec Function - Texas Instruments TI-36 X Solar Calculator Calculators

Cosec = 1/sin and sec = 1/cos

Posted on Oct 04, 2007

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How do i put secant into my casio fx-260 calculator

The Casio FX-260 does not offer this function as a single key operation. However, calculating sec(x) is simple as sec(x) = 1 / cos(x).

Key in x [COS] [1/x] and the wanted result is displayed.

Jun 07, 2014 | Casio Calculators

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What is the axis of symmetry of the function f(x) = x2 + 10x?

It is the vertical line that passes through the vertex of the parabola y=x^2+10x
You can graph the function or use differential calculus to find position of the minimum.
The vertex is at (-5,-25) and the axis of symmetry is the line x=-5.

Dec 19, 2013 | Calculators

1 Answer

How do you calculate sec174?

SEC, CSC & COT are the INVERSE of COS, SIN & TAN and are usually require hitting the "2nd F" or "Func" key of the calc to make:

SIN button work as COSEC,

COS button work as SEC

TAN button work as COT

Formulas are below:

sec x = 1
cos x

cosec x = 1
sin x

cot x = 1 = cos x
tan x sin x

Good luck!

Feb 05, 2013 | Sharp EL531 Scientific Calculator

1 Answer

How can you change the mode on a casio fx-9860g calculator to deg. mode?

Press SHIFT MENU to bring up the setup screen. Use the arrow keys to move to the "Angle" line and press the function key for the desired angle mode.

Mar 04, 2011 | Casio FX-9860G Slim Graphic Calculator

1 Answer

Absolute values I just need to kow how to do them on this calculater

Use the ab() function available in the MATH NUM menu. For example, to calculate the absolute value of -4, press
MATH right-arrow 1 (-) 4 ENTER
and see 4.

Jan 22, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

How do i enter sec^-1(1.85)

You cannot enter it on the calculator but you can use the relation arcsec(z) =arccos(1/z)
On your calculator arccos is represented as cos^-1.
Here is a screen capture from a calculator that has the function. The arcos is computed along with the arcsec for angles in radians (top 2 lines) and in degrees (bottom two lines).


Sep 09, 2010 | Texas Instruments TI-84 Plus Silver...

2 Answers

TI-83 graph problems-help please. Hi, sorry to sound so stupid, but trying for hours to try to solve these using my calculator,but doing something wrong as can't get the right answers. I wonder if anyone...

Open Y= editor and type in the two functions
The calculaus functions are accessible by pressing [2nd][TRACE] to open the CALCulate menu options. For the gradient (I think you mean the derivative) use option 6:dy/dx. But first choose the point where you want it calculated (use cursor to move along the curve) and press ENTER. The value of the deivative will be calculated at the chosen point.

The vertex of the parabolas are maxima. Thus you must use option 4:maximum
You will be prompted for a left bound. Move cursor to the left of the maximum (not too far) and press [ENTER]. A fat arrow is displayed on the graph that shows the left limit of the interval. You will be prompted for a right bound. Move cursor along the curve to the right of the the vertex. Press ENTER. A seconf fat arrow will be displayed to show the right limit of the interval.

You will be prompted for a guess of the maximum. Move cursor newar the max or enter a numerical value and press ENTER.


The location of the vertex is displayed (X and Y values)
I have no idea what you mean by the equation of symmetry


May 02, 2010 | Texas Instruments TI-83 Plus Calculator

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The cosecant function is defined by
cosec(x) = 1/sin(x)

1[/] [sin] x.
Do not confuse this function with the arcsine function which is accessed by [2nd][sin to the -1]. When you use trigonometric functions make sure that the angle unit (Rad, dgree, grad) is the one you want.

Hope it helps.

Sep 18, 2009 | Texas Instruments TI-30XA Calculator

1 Answer


This is a trigonometry problem not a calculator's.
cos(x) +tan(x).sin(x) = ( cos(x) + (sin(x)/cos(x)).sin(x). After reduction to the same denominator (which is cos(x)) you obtain

{cos(x).cos(x) + sin(x).sin(x)} divided by cos(x).
The content of the bracket above is just 1.
Your fraction will have 1 as numerator and cos(x) as denomitor. That is exactly the definition of the secant function i.e. Function sec is the reciprocal (not the inverse) of the cos function, while the arccos is the inverse of cos.

A mild advice: Avoid writing function without specifying the argument (the variable on which a function acts).


Aug 14, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

TI-84 Plus silver edition sin/cos/tan

for function = (sin,cos,tan,sec,cosec,cotan)
arc(function) = function^-1, calculated in the first quadrant for simplicity(0-pi/2) (0-90deg), as all functions repeat circularly
just another method of notation

Jun 19, 2008 | Texas Instruments TI-84 Plus Silver...

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