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kolyaklyuev96
@kolyaklyuev96
August 2021
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Реши неравенство: 2⋅log^2 4t−12log4t+16≤0
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snailcat1
Замена:
log4t=x
2x²-12x+16=0/2
x²-6x+8=0
D=b²-4ac=36-32=4=2²
x1=4 ;x2=2
Обратная замена:
log4t=4 log4t=2
t=1 ; t=0,5.
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Answers & Comments
log4t=x
2x²-12x+16=0/2
x²-6x+8=0
D=b²-4ac=36-32=4=2²
x1=4 ;x2=2
Обратная замена:
log4t=4 log4t=2
t=1 ; t=0,5.