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Milash0909
@Milash0909
July 2022
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Решить логарифмическое уравнение.
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MrsVaderr
Verified answer
Пусть log(4)x=t
2t^2+t-1=0
D=1+8=9
t1=0,5
t2=-1 - посторонний корень
ВКЗ
log(4)1/2=-2
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Thanks 2
gal4enok007
Log4 X=t
2t^2 +t -1=0
t1= -1
t2= 1/2
Log4 X= -1. X= 4^-1
X= 1/4
Log4 X= 1/2
X=4^1/2. X=2
0 votes
Thanks 1
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Answers & Comments
Verified answer
Пусть log(4)x=t2t^2+t-1=0
D=1+8=9
t1=0,5
t2=-1 - посторонний корень
ВКЗ
log(4)1/2=-2
2t^2 +t -1=0
t1= -1
t2= 1/2
Log4 X= -1. X= 4^-1
X= 1/4
Log4 X= 1/2
X=4^1/2. X=2