oblicz x, korzystając z własnosci logorytmow log3x=2log4 pierwiastków z 5-log4 20
log₄√5² - log₄20=log₄5/20=log₄1/4
4^x = 1/4
4^x=4^-1
x=-1
więc:
log₃x= -1
3^-1=x
x=1/3
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log₄√5² - log₄20=log₄5/20=log₄1/4
4^x = 1/4
4^x=4^-1
x=-1
więc:
log₃x= -1
3^-1=x
x=1/3