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fatalitipro
@fatalitipro
August 2021
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если косинус острого угла равена 1/3 то чему равен синус этого угла
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SVETA1951TIT
Verified answer
Sin²α+cos²α = 1
sin²α+(1/3)² = 1
sin²α = 1 - 1/9
sin²α = 9/9 -1/9 = 8/9
sin α = +-√8/9
sin α = 2√2 / 3
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Answers & Comments
Verified answer
Sin²α+cos²α = 1sin²α+(1/3)² = 1
sin²α = 1 - 1/9
sin²α = 9/9 -1/9 = 8/9
sin α = +-√8/9
sin α = 2√2 / 3