cos equation?

how many solutions does cosv=3√2 in the interval  90°≤v≤270° ?

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  • 1 month ago

    cosv=3√2  has no solutions.  The range of cosv is [-1,1] but 3√2 > 1.

    If you meant cosv = -√3/2, then there are two solutions:

    v = 5pi/6 or v = 7pi/6

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