题目内容
若a |
b |
c |
d |
e |
f |
2 |
3 |
a+3c |
b+3d |
c-e |
d-f |
分析:若
=
=
=
得到:
=
=
=
=
,根据合比性质求解即可.
a |
b |
c |
d |
e |
f |
2 |
3 |
3c |
3d |
a |
b |
c |
d |
-e |
-f |
2 |
3 |
解答:解:∵
=
=
=
∴
=
=
=
=
根据合比性质得:
=
,
=
.
a |
b |
c |
d |
e |
f |
2 |
3 |
∴
3c |
3d |
a |
b |
c |
d |
-e |
-f |
2 |
3 |
根据合比性质得:
a+3c |
b+3d |
2 |
3 |
c-e |
d-f |
2 |
3 |
点评:本题主要考查了比例的合比性质,对性质的熟练应用是解题的关键.
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