鍒濅腑鏁板绔炶禌杈呭璧勬枡
(9)
涓�鍏冧竴娆℃柟绋嬭В鐨勮璁?/p>
鐢?/p>
:
鍐呭鎻愯
1.
鏂圭▼鐨勮В鐨勫畾涔夛細鑳戒娇鏂圭▼宸﹀彸涓よ竟鐨勫�肩浉绛夌殑鏈煡鏁扮殑鍊煎彨鍋氭柟绋嬬殑瑙ｃ�備竴鍏冩柟
绋嬬殑瑙ｄ篃鍙仛鏍广�?/p>
渚嬪锛氭柟绋?/p>
2x
锛?/p>
6
锛?/p>
0;x
锛?/p>
x-1
锛?/p>
=0;|x|=6;0x=0;0x=2
鐨勮В
.
鍒嗗埆鏄細
x=
锛?/p>
3, x=0
鎴?/p>
x=1, x=
卤
6,
鎵�鏈夌殑鏁帮紝鏃犺В銆?/p>
2.
鍏充簬
x
鐨勪竴鍏冧竴娆℃柟绋嬬殑瑙ｏ紙鏍癸級鐨勬儏鍐碉細鍖栦负鏈�绠�鏂圭▼
ax=b
鍚庯紝
璁ㄨ瀹冪殑瑙ｏ細褰?/p>
a
鈮?/p>
0
鏃讹紝鏈夊敮涓�鐨勮В
x=
a
b
锛?/p>
褰?/p>
a=0
涓?/p>
b
鈮?/p>
0
鏃讹紝鏃犺В锛?/p>
褰?/p>
a=0
涓?/p>
b
锛?/p>
0
鏃讹紝鏈夋棤鏁板瑙ｃ�?/p>
锛堚埖涓嶈
x
鍙栦粈涔堝�硷紝
0x
锛?/p>
0
閮芥垚绔嬶級
3.
姹傛柟绋?/p>
ax=b(a
鈮?/p>
0)
鐨勬暣鏁拌В銆佹鏁存暟瑙ｃ�佹鏁拌В
褰?/p>
a
锝?/p>
b
鏃讹紝鏂圭▼鏈夋暣鏁拌В锛?/p>
褰?/p>
a
锝?/p>
b
锛屼笖
a
銆?/p>
b
鍚屽彿鏃讹紝鏂圭▼鏈夋鏁存暟瑙ｏ紱
褰?/p>
a
銆?/p>
b
鍚屽彿鏃讹紝鏂圭▼鐨勮В鏄鏁般�?/p>
缁间笂鎵�杩帮紝璁ㄨ涓�鍏冧竴娆℃柟绋嬬殑瑙ｏ紝涓�鑸簲鍏堝寲涓烘渶绠�鏂圭▼
ax=b
涔?/p>
:
渚嬮
渚?/p>
1
a
鍙栦粈涔堝�兼椂锛屾柟绋?/p>
a(a
锛?/p>
2)x=4(a
锛?/p>
2):
鈶犳湁鍞竴鐨勮В锛熲憽鏃犺В锛?/p>
鈶㈡湁鏃犳暟澶氳В锛熲懀鏄鏁拌В锛?/p>
瑙ｏ細鈶犲綋
a
鈮?/p>
0
涓?/p>
a
鈮?/p>
2
鏃讹紝鏂圭▼鏈夊敮涓�鐨勮В锛?/p>
x=
a
4
鈶″綋
a=0
鏃讹紝鍘熸柟绋嬪氨鏄?/p>
0x=
锛?/p>
8
锛屾棤瑙ｏ紱
鈶㈠綋
a=2
鏃讹紝鍘熸柟绋嬪氨鏄?/p>
0x=0
鏈夋棤鏁板瑙?/p>
鈶ｇ敱鈶犲彲鐭ュ綋
a
鈮?/p>
0
涓?/p>
a
鈮?/p>
2
鏃讹紝鏂圭▼鐨勮В鏄?/p>
x=
a
4
,
鈭村彧瑕?/p>
a
涓?/p>
4
鍚屽彿锛?/p>
鍗冲綋
a>0
涓?/p>
a
鈮?/p>
2
鏃讹紝鏂圭▼鐨勮В鏄鏁般�?/p>