Texas Instruments TI-83 Plus Calculator "arccos" Questions

...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 ...

...arc cos How do you change the interval range for arc cos I'm not sure of the question, but to plot arccos set mode to: graph='function' and angle to 'degrees' (for example). Go to WINDOW and set

...That is a round-about way to solve cos(x)=0.543 by graphing. Use the inverse function of the cosine arccos or cos^-1 If cos(x)=0.543 then x=arccos(0.543) To graph a trigonometric function it is more ...

how do you input arccos(5/10) in the ti 30x IIS model 2nd COS 5 / 1 0 ) =

my calculator wont graph arccos? please help its in the right mode and everything Make sure x is in the range [-1, +1]. The arccosine function is undefined for arguments whose magnitude exceed one.

how do you input arccos sin(theta)=32/145, solve for theta Press 2nd SIN 3 2 / 1 4 5 ) = Make sure you have the desired angular mode set before you do this. cos^(-1)(x)

enter arccos Press SHIFT then the cos key.

how do I input secant^2 Secant is the reciprocal of cosine sec(x)=1/cos(x) Do not confuse it with the inverse of the cosine function, which is arccos(x) =cos^-1(x)

...I get -tan,-sin,-cos for inverse ratios If you want the inverse trig functions (arctan, arcsin, and arccos), press the yellow 2nd key before pressing the appropriate trig function key. If you want a ...

...the angle. The cosine is .5553, what do I push to find out the angle? 2ND cos^(-1) . 5 5 5 3 ENTER arccos is the same key as the cos, two keys above the 8. The result will be in whichever angular ...