a/(b+c)+b/(a+c)+c/(a+b)=4求a,b,c的整数解
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a/(b+c)陪败+b/(a+c)+c/(a+b)=4求a,b,c的整数解
a/(b+c)+b/(a+c)+c/(a+b)=4
a/b+a/c+b/a+b/c+c/a+c/b=4
(a/b+c/b)+(a/c+b/c)+(b/a+c/a)=4
(a/b+c/b)+1+(a/c+b/c)+1+(b/a+c/a)+1=1
(a/b+c/b+1)+(a/c+b/c+1)+(b/a+c/a+1)=1
(a/b+c/b+b/b)+(a/c+b/c+c/c)+(芦漏颤b/a+c/a+a/a)=1
(a+b+c)/b+(a+b+c)/c+(a+b+c)/a=1
(搜昌a+b+c)/(1/a+1/b+1/c)=1
a+b+c=1/a+1/b+1/c
所以,
a=1/a,解得a=1
b=1/b,解得b=1
c=1/c,解得c=1
所以,a/(b+c)+b/(a+c)+c/(a+b)=4的解为a=1,b=1,c=1
a/(b+c)+b/(a+c)+c/(a+b)=4
a/b+a/c+b/a+b/c+c/a+c/b=4
(a/b+c/b)+(a/c+b/c)+(b/a+c/a)=4
(a/b+c/b)+1+(a/c+b/c)+1+(b/a+c/a)+1=1
(a/b+c/b+1)+(a/c+b/c+1)+(b/a+c/a+1)=1
(a/b+c/b+b/b)+(a/c+b/c+c/c)+(芦漏颤b/a+c/a+a/a)=1
(a+b+c)/b+(a+b+c)/c+(a+b+c)/a=1
(搜昌a+b+c)/(1/a+1/b+1/c)=1
a+b+c=1/a+1/b+1/c
所以,
a=1/a,解得a=1
b=1/b,解得b=1
c=1/c,解得c=1
所以,a/(b+c)+b/(a+c)+c/(a+b)=4的解为a=1,b=1,c=1
追问
不对啊大佬,若是都是1的话算出来是二分之三啊
不对啊大佬,若是都是1的话算出来是二分之三啊
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a/(b+c)+b/渗陵(a+c)+c/(a+b)=4
答锋仿案:
a=
4373612677928697257861252602371390152816537558161613618621437993378423467772036
b=
36875131794129999827197811565225474825492
979968971970996283137471637224634055579
c=
15447680210874616644195131501991983748566
4325669565431700026634898253202035277999
a/(b+c)+b/渗陵(a+c)+c/(a+b)=4
答锋仿案:
a=
4373612677928697257861252602371390152816537558161613618621437993378423467772036
b=
36875131794129999827197811565225474825492
979968971970996283137471637224634055579
c=
15447680210874616644195131501991983748566
4325669565431700026634898253202035277999
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