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Mathematics, 28.09.2019 18:00 shadowsnake

In the figure, m∠b = m∠c and ∠d is a right angle. cos b =


In the figure, m∠b = m∠c and ∠d is a right angle. cos b =

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In the figure, m∠b = m∠c and ∠d is a right angle. cos b =
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