ժҪ
ЌԿW(xu)Ҫ;(hu)݅ͨ߿Ϊ(d)ԇУΪ(d)ԇԼ˸߿ȷʽ҇m(x)_(ti)˶(xing)Ą(l)ЌW(xu)v
ЌԿW(xu)Ҫ;(hu)݅ͨ߿Ϊ(d)ԇУΪ(d)ԇԼ˸߿ȷʽ҇m(x)_(ti)˶(xing)Ą(l)ЌW(xu)vЌӸ߿Ҫעһc(din)ڸ߿ǰһҪӌW(xu)УĸЌW(xu)I(y)ˮƽԇQ(hu)@øͬȌW(xu)
1
ЌԿW(xu)Ҫ;(hu)݅ͨ߿Ϊ(d)ԇУΪ(d)ԇԼ˸߿ȷʽ҇m(x)_(ti)˶(xing)Ą(l)ЌW(xu)v
ЌӸ߿Ҫעһc(din)ڸ߿ǰһҪӌW(xu)УĸЌW(xu)I(y)ˮƽԇQ(hu)@øͬȌW(xu)ȻԼĶCڲڌW(xu)У_ߵͬ(bo)Cm(x)k(bo)
ЌԈ(bo)УΪ(d)l(f)]ԼČLԇyͨ߿
ЌԈ(bo)Ϊ(d)ԇ(j)ԼԸ(bo)(yng)ČW(xu)ԺI(y)ͨ^Pԇԇ˺ȡ
Nԇǰ߿(bo)ȡڇȫƌW(xu)vcҽy(tng)һд
2
3+23+2I(y)W(xu)У,ƌƽֱÌƮI(y)C,3+2ЌƵ ֶƌW(xu)ЌW(xu)(x)A΅ӡֶΡӸy(tng)һԇ,ɿϸD(zhun)ߵԺУɃW(xu)(x)