if a+b+c+d=s where a,b,c,d are distinct positive numbers then show that (s-a) (s-b) (s-c) (s-d) > 81 abcd ?
if a+b+c+d=s where a,b,c,d are distinct positive numbers then show that (s-a) (s-b) (s-c) (s-d) > 81 abcd ?
chaman , 11 Years ago
Grade 12
Algebra> progression-and-series...
1 Answers
akhil v
Last Activity: 11 Years ago
let a=1,b=2,c=3,d=4
then,a+b+c+d=10
so,(10-1)(10-2)(10-3)(10-4)>81*1*2*3*4
3024>1944
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