Do I need a new calculator? I may have to do such trig calculations on a test...
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).
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SOURCE: trig functions of the TI-30XA
if the sides of a triangle are 15cm ,16cm, and 17 cm ,then the area of the triangle is what ?
SOURCE: 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.
SOURCE: how do i use the square root on my ti 36x
Hi,
There is a dedicated key for the function. The key is labeled as on the third line of the table below. You enter a positive number, press the key and then hit [=]. Hope it helps.
SOURCE: how do you calculate the square root using the
Type the number you wish to find the square root of... then hit the button in blue below.
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I've been switching into Radian mode by pressing [DRG>][=]
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