早教吧 育儿知识 作业答案 考试题库 百科 知识分享

log2125×log318×log519=.

题目详情
log2
1
25
×log3
1
8
×log5
1
9
=______.
log2
1
25
×log3
1
8
×log5
1
9
=______.
g2
1
25
×log3
1
8
×log5
1
9
=______.
g2
1
25
×log3
1
8
×log5
1
9
=______.
2
1
25
×log3
1
8
×log5
1
9
=______.
1
25
112525g3
1
8
×log5
1
9
=______.
g3
1
8
×log5
1
9
=______.
3
1
8
×log5
1
9
=______.
1
8
1188g5
1
9
=______.
g5
1
9
=______.
5
1
9
=______.
1
9
1199
▼优质解答
答案和解析
log2
1
25
×log3
1
8
×log5
1
9
=-log225•log38•log59=-
lg25
lg2
lg8
lg3
lg9
lg5
=
2lg5
lg2
3lg2
lg3
2lg3
lg5
=-12
故答案为-:12.
log2
1
25
×log3
1
8
×log5
1
9
=-log225•log38•log59=-
lg25
lg2
lg8
lg3
lg9
lg5
=
2lg5
lg2
3lg2
lg3
2lg3
lg5
=-12
故答案为-:12.
2
1
25
111252525×log3
1
8
×log5
1
9
=-log225•log38•log59=-
lg25
lg2
lg8
lg3
lg9
lg5
=
2lg5
lg2
3lg2
lg3
2lg3
lg5
=-12
故答案为-:12.
3
1
8
111888×log5
1
9
=-log225•log38•log59=-
lg25
lg2
lg8
lg3
lg9
lg5
=
2lg5
lg2
3lg2
lg3
2lg3
lg5
=-12
故答案为-:12.
5
1
9
111999=-log2225•log338•log559=-
lg25
lg2
lg8
lg3
lg9
lg5
=
2lg5
lg2
3lg2
lg3
2lg3
lg5
=-12
故答案为-:12.
lg25
lg2
lg25lg25lg2525lg2lg2lg22•
lg8
lg3
lg9
lg5
=
2lg5
lg2
3lg2
lg3
2lg3
lg5
=-12
故答案为-:12.
lg8
lg3
lg8lg8lg88lg3lg3lg33•
lg9
lg5
=
2lg5
lg2
3lg2
lg3
2lg3
lg5
=-12
故答案为-:12.
lg9
lg5
lg9lg9lg99lg5lg5lg55=
2lg5
lg2
3lg2
lg3
2lg3
lg5
=-12
故答案为-:12.
2lg5
lg2
2lg52lg52lg55lg2lg2lg22•
3lg2
lg3
2lg3
lg5
=-12
故答案为-:12.
3lg2
lg3
3lg23lg23lg22lg3lg3lg33•
2lg3
lg5
=-12
故答案为-:12.
2lg3
lg5
2lg32lg32lg33lg5lg5lg55=-12
故答案为-:12.