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Mathematics 22 Online
OpenStudy (anonymous):

use the unit circle to find the inverse function value in degrees. tan^-1 sqrt of 3 A. 120 degrees B. 90 degrees C. 60 degrees D. 30 degrees

OpenStudy (rulnick):

The angle whose tangent is sqrt(3) has an opposite side whose length is greater than the adjacent side's. So it must be greater than a 45 degree angle. But it cannot be 90 or greater than 90 or the tangent would be undefined or negative. So the answer must be ...

OpenStudy (anonymous):

60 degrees

OpenStudy (rulnick):

Right!

OpenStudy (anonymous):

thank you!

OpenStudy (rulnick):

welcome

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