Keyword Analysis & Research: trig

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Frequently Asked Questions

What is the meaning of trig?

Definition of trig (Entry 2 of 2) 1 : stylishly or jauntily trim everything was trim and trig and bright — Mark Twain. 2 : extremely precise : prim. 3 dialectal, chiefly British : firm, vigorous. Keep scrolling for more.

How many trig functions can be defined from a right triangle?

Recall as well that all the trig functions can be defined in terms of a right triangle. From this right triangle we get the following definitions of the six trig functions.

What do you need to know to evaluate trig functions?

Another important idea from the last example is that when it comes to evaluating trig functions all that you really need to know is how to evaluate sine and cosine. The other four trig functions are defined in terms of these two so if you know how to evaluate sine and cosine you can also evaluate the remaining four trig functions.

Is trigonometry also about circles?

Also try 120°, 135°, 180°, 240°, 270° etc, and notice that positions can be positive or negative by the rules of Cartesian coordinates, so the sine, cosine and tangent change between positive and negative also. So trigonometry is also about circles!

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