求出a,b,c,d的值231.532=0.172019a+0.110737b+0.282756c+d 2238.4=0.458901 a+1.060416 b+1.519316 c+ d 2096.27= 0.339673a+1.419374 b+1.759047 c+ d 2169.1=0.173463a+1.050431 b+1.223894 c+ d
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求出a,b,c,d的值231.532=0.172019a+0.110737b+0.282756c+d 2238.4=0.458901 a+1.060416 b+1.519316 c+ d 2096.27= 0.339673a+1.419374 b+1.759047 c+ d 2169.1=0.173463a+1.050431 b+1.223894 c+ d
求出a,b,c,d的值
231.532=0.172019a+0.110737b+0.282756c+d
2238.4=0.458901 a+1.060416 b+1.519316 c+ d
2096.27= 0.339673a+1.419374 b+1.759047 c+ d
2169.1=0.173463a+1.050431 b+1.223894 c+ d
求出a,b,c,d的值231.532=0.172019a+0.110737b+0.282756c+d 2238.4=0.458901 a+1.060416 b+1.519316 c+ d 2096.27= 0.339673a+1.419374 b+1.759047 c+ d 2169.1=0.173463a+1.050431 b+1.223894 c+ d
231.532=0.172019a+0.110737b+0.282756c+d ①
2238.4=0.458901 a+1.060416 b+1.519316 c+ d ②
2096.27= 0.339673a+1.419374 b+1.759047 c+ d ③
2169.1=0.173463a+1.050431 b+1.223894 c+ d ④
计算方法或步骤:
①减② 得⑤
②减③ 得⑥
③减④ 得⑦ 消去d
再 找⑤与⑥ 关于a公约数 使⑤中na=⑥中na 为x
⑤乘x 得⑧
⑧减⑥ 得⑨ 消去a
同样 再 找⑥与⑦ 关于a公约数 使⑥中na=⑦中na 为y
⑥乘y 得⑩
⑩减⑦ 得 十一 消去a
再 找⑨与 十一 关于b公约数 使⑨中na= 十一 中 nb
继续约去b 就可以得出c
再把c代入
就求出答案了
我的答案是
a=123.4567
b=234.5678
c=345.6789
d=456.7890
你地,明白