This lesson on precalculus shows you how to solve trig equations. On solving problems involving any trigonometric functions, you will be needing your unit circle to solve for the values of "x." In trig, unlike algebra, once you have isolated your x value, your work is already finished. However, in trigonometry, once you have the trig function by itself, you will need to use the table of values to solve for the actual values of x in the function.
0:48 2 cos x - 1 = 0
3:46 sin^2 x - 1= 0
5:03 3 tan^2 x - 1 = 0
7:23 tan 2x - 1 = 0
09:03 2 sec x - 4 = 0
11:32 4 csc^2 x - 8 = 0
14:17 sec^2 x - sec x - 2 = 0
17:01 2 sin^2 x + 3 sin x +1 = 0
19:29 √3 csc x - 2 = 0
Негізгі бет HOW TO SOLVE TRIGONOMETRIC EQUATION USING THE UNIT CIRCLE (TRIGONOMETRY) | PRECALCULUS
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