How do i get my calculator to do the trig problem Tan45=1? It is telling me Tan45=1.61977, and i know that isn't right.

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!

Hi there,

To use the trig functions simply press the button with the trig function you want and then type in the value of the angle. If you want to add or subtract thing within the angle remember to put open and close ( ) brackets around the angle.

If you have any other calculator questions dont forget to check out Welcome to Maths at SHARP Maths at Sharp

The website also has a manual available to download.

For the inverse trig functions, press 2ND then the trig function key. For example, to calculate the arcsine of 0.5, press 2ND SIN . 5 ENTER

Press MATH, up/down-arrow to Trig, right-arrow, then up/down-arrow to SEC.

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.

No calculator can have EVERY mathematical function. Very few calculators have the secondary trig functions like cosecant because they're so simple to calculate in other ways. By definition csc(x) is equal to 1/sin(x) and you can calculate it that way. Similarly, calculate sec(x) as 1/cos(x) and cot(x) as 1/tan(x).

Your calculator is set in radians. Press mode key. Arrow down to 3rd line. Highlight degree and press enter. Your calculator is now in degrees, not radians. To get out of the mode screen and back to home screen, press 2nd and then mode.

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.*

if the sides of a triangle are 15cm ,16cm, and 17 cm ,then the area of the triangle is what ?

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.