p86-87/1 ⑴ x=1/2 ⑵ x=-3/2 ⑶ x=2 ⑷ x=log2/2log5+log2/2②/3②/4⑤/5⑴x>-3 ⑵ -1≤x≤0 ⑶ x<-15 ⑷ 0<x<2/6②/7① p88 -89/1⑤/2⑴ y=log3x ⑵y=2x+1
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당신은 어느 그룹입니까?