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smogle
@smogle
August 2022
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в треугольнике ABC угол C=90 градусов AC=18мм BC=24мм. Найдите sinA cosA tgA sinB cosB tgB
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erzhan9210
AB=√(18²+24²)=√(324+576)=√900=30 мм
sinA=BC/AB=24/30=4/5
cosA=AC/AB=18/30=3/5
tgA=BC/AC=24/18=4/3=1 1/3
sinB=AC/AB=18/30=3/5
cosB=BC/AB=24/30=4/5
tgB=AC/AB=18/24=3/4
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Answers & Comments
sinA=BC/AB=24/30=4/5
cosA=AC/AB=18/30=3/5
tgA=BC/AC=24/18=4/3=1 1/3
sinB=AC/AB=18/30=3/5
cosB=BC/AB=24/30=4/5
tgB=AC/AB=18/24=3/4