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Geometry 22 Online
OpenStudy (anonymous):

In ΔABC, if m ∠A = m∠C, m∠B = ß (where ß is an acute angle), and BC = x, which expression gives the length of b, the side opposite ∠B ? sq root of x^2-(1-cosB)

OpenStudy (mathstudent55):

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OpenStudy (mathstudent55):

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