Ответ:
(5×2sin37°×cos37°)/(cos37°×cos53°)=(5×2sin(90°-53°))/(cos53°)=(5×2cos53°)/(cos53°)=5×2=10
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Ответ:
(5×2sin37°×cos37°)/(cos37°×cos53°)=(5×2sin(90°-53°))/(cos53°)=(5×2cos53°)/(cos53°)=5×2=10