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meatdumplingsqueen
@meatdumplingsqueen
August 2022
1
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sqrt tga + sqrt ctga, если tga+ctga=a(a>0)
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mmb1
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Tga+ctga=sina/cosa+cosa/sina=(sina^2+cosa^2)/sinacosa=1/sinacosa=a
sinacosa=1/a
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Tga+ctga=sina/cosa+cosa/sina=(sina^2+cosa^2)/sinacosa=1/sinacosa=asinacosa=1/a