题目内容
已知:
=
=
,求
的值.
x |
3 |
y |
4 |
z |
5 |
x+y+z |
x |
设
=
=
=k,
∴x=3k,y=4k,z=5k,
∴
=
=4.
x |
3 |
y |
4 |
z |
5 |
∴x=3k,y=4k,z=5k,
∴
x+y+z |
x |
3k+4k+5k |
3k |
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题目内容
x |
3 |
y |
4 |
z |
5 |
x+y+z |
x |
x |
3 |
y |
4 |
z |
5 |
x+y+z |
x |
3k+4k+5k |
3k |