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LamBaDa
01-21-2011, 07:06
log3(2X-1) + log3(X+2)=log3 27 - 2 ?????

П.П (log3 - логаритъм при основа 3..)

Chacho
01-27-2011, 02:44
|2x-1>0 x>1/2
|x+2>0 x>-2


log3(2x-1).(x+2) = 3-2
log3(2x