Angle x is a third quadrant angle such that cos x = -1/5.
What is the exact value of cos...
Mathematics, 05.05.2020 03:23 loredobrooke5245
Angle x is a third quadrant angle such that cos x = -1/5.
What is the exact value of cos (x/2)?
Enter your answer, in simplest radical form, in the box.
cos (x/2) = ___
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