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Купальник
@Купальник
July 2022
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Найдите тангенс острого угла а,если cos a= 0.8
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svetaeremina022
Verified answer
Sin a^2 +cos a^2=1
sin a^2= 1-0,8^2
sin a^2=1-0,64
sin a^2=0,36
sin a=0,6
tg a=sin a/cos a=0,6/0,8=6/8=3/4=0,75
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Answers & Comments
Verified answer
Sin a^2 +cos a^2=1sin a^2= 1-0,8^2
sin a^2=1-0,64
sin a^2=0,36
sin a=0,6
tg a=sin a/cos a=0,6/0,8=6/8=3/4=0,75