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20 questions
log1272+log122=
5log523=
32log36=
5log254=
2log525+3log264=
lg700−lg7=
log48=
−2
23
2
32
21
10lg3+lg20+lg5=
2log77+3log21=
3lne2+lne4=
log153+log155log575−log53=
log73log781=
lg0,0001=
log2731+log1621−log3661=
log3log3log327=
log32log364−log53log59=
eln5−lg100+4log55
log216+log749=
log3135−log35=
51+log52=
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