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e3ik
@e3ik
August 2022
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5t+4*1/t=9
Cрочнооот
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fiofionina
Verified answer
Решение:
5t + 4*1/t=9
Приведём уравнение к общему знаменателю t:
5t²+4 =9t
5t² -9t +4=0
t1,2=(9+-D)/2*5
D=√(81-4*5*4)=√(81-80)=√1=1
t1,2=(9+-1)/10
t1=(9+1)/10=10/10=1
t2=(9-1)/10=8/10=0,8
Ответ: t1=1; t2=0,8
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Answers & Comments
Verified answer
Решение:5t + 4*1/t=9
Приведём уравнение к общему знаменателю t:
5t²+4 =9t
5t² -9t +4=0
t1,2=(9+-D)/2*5
D=√(81-4*5*4)=√(81-80)=√1=1
t1,2=(9+-1)/10
t1=(9+1)/10=10/10=1
t2=(9-1)/10=8/10=0,8
Ответ: t1=1; t2=0,8