急急急 幫幫我算這題數學

數學全忘光了...真糟...

推推

[1+x 2 3 4 ] [10+x 2 3 4 ]
[ 1 2+x 3 4 ] =0 -> [10+x 2+x 3 4 ] =0
[ 1 2 3+x 4 ] [10+x 2 3+x 4 ]
[ 1 2 3 4+x] [10+x 2 3 4+x]

[ 1 2 3 4 ] (-1)
-> (10+x)[ 1 2+x 3 4 ] =0 <-
[ 1 2 3+x 4 ] <-
[ 1 2 3 4+x] <-

[ 1 2 3 4 ]
-> (10+x)[ 0 x 0 0 ] =0
[ 0 0 x 0 ]
[ 0 0 0 x ]

[ x 0 0 ]
-> (10+x)[ 0 x 0 ] =0
[ 0 0 x ]

-> (10+x)x*x*x=0 ->x=-10 & x=0

哇勒~
打那麼辛苦
竟然亂掉了
希望你看的懂
很簡單的行列式運算

太感謝嚕^_^

[1+x. 2.. 3.. 4 ].......[10+x..2.. 3. 4 ]
[ 1. 2+x. 3.. 4 ] =0 -> [10+x 2+x. 3. 4 ] =0
[ 1.. 2. 3+x. 4 ]...... [10+x. 2. 3+x 4 ]
[ 1.. 2.. 3. 4+x]...... [10+x. 2. 3. 4+x]

.........[ 1. 2.. 3.. 4 ] (-1)
-> (10+x)[ 1 2+x. 3.. 4 ] =0 <-
.........[ 1 2.. 3+x. 4 ] <-
.........[ 1 2... 3. 4+x] <-

.........[ 1 2 3 4 ]
-> (10+x)[ 0 x 0 0 ] =0
.........[ 0 0 x 0 ]
.........[ 0 0 0 x ]

.........[ x 0 0 ]
-> (10+x)[ 0 x 0 ] =0
.........[ 0 0 x ]

-> (10+x)x*x*x=0 ->x=-10 & x=0

PS.用點代替空格應該不會亂了吧!

還是亂掉啦
你複製貼上就可以看清楚了
複製下來的是沒亂掉的原貌