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OpenStudy (anonymous):
Find the exact value of cos^1 -sqrt3/2
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OpenStudy (anonymous):
when does cosine take a value of sqrt (3/2) ?
OpenStudy (anonymous):
Idk I'm completely lost & just trying to get an answer
OpenStudy (er.mohd.amir):
since cos x=sqrt3/2 give at x=30 degree but its -ve so ans is 180-30=150
OpenStudy (anonymous):
How'd you come up with that answer
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