Question

1 supra 2+1 supra 3+1 supra n=

Answer 1

1/2 + 1/3 + 1/n = x
Amplifici prima cu 3 si a doua cu 2 =>
=> 5/6 + n = x => 5/6 = x-n/1 amplifici x-n/1 cu 6 => 6(x-n)/6 = 5/6 => x-n = 5 =>
X € {9, 8 , 7 , 6, 5 , } , N € { 4 , 3 , 2 , 1 , 0 }