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OpenStudy (anonymous):
Find all values of θ in 0° to 360°, where cos θ = -0.4226.
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OpenStudy (anonymous):
step one is to find \[\cos^{-1}(-.4226)\]
OpenStudy (anonymous):
make sure you calcualtor is in degree mode, since it askes for theta in degrees
OpenStudy (anonymous):
114.9 or should I round up to 115?
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