已知log147=a,log145=b,则用a,b表示log3528=______.
人气:291 ℃ 时间:2020-03-26 13:23:49
解答
∵log
3528=
=
=
log14142−log147 |
log145+log147 |
=
∵log
147=a,log
145=b∴原式=
故答案为:
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