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Solve Equationsusing Inverse Trigonometry Functions - Example 2

In trigonometry and mathematics in general, an inverse trigonometric function is a function that is the inverse of another trigonometric function. For example, the inverse sine of an angle is the angle whose sine is that same angle.

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Algebra 2

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value off sign of 690 degrees. So what we need to do is we need to find the co terminal angle off 609 degrees. That's between zero and 360. So in order to do that, we need to subtract 690 minus 360 and that's going to give me 330. So 330 is the co terminal angle. So we need to find to find sign of 690 degrees. We need to find the sign of 330 degrees. So in order to do that, we're gonna come over here and look and right here is our sign of 330 degrees. And since we're looking for sign we're looking for are why value? So that means that it is negative one? Uh huh.

Liberty University
Algebra 2

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Lily A.

Johns Hopkins University

Boris M.

University of North Carolina at Chapel Hill

Shubham P.

University of Washington

Heather Z.

Oregon State University

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