看似最简单的数学题

Question

用运算符号使下面等式成立，不添加额外数字

1    1    1    = 6
2 +  2  + 2    = 6
3    3    3    = 6
4    4    4    = 6
5    5    5    = 6
6    6    6    = 6
7    7    7    = 6
8    8    8    = 6
9    9    9    = 6

Answer 1

( 1  +   1   +   1 )!          = 6
  2  +   2   +   2             = 6
  3  *   3   -   3             = 6
  4  +   4   -   sqrt(4)       = 6
  5  +   5   /   5             = 6
  6  *   6   /   6             = 6
  7  -   7   /   7             = 6
  8  -   sqrt( sqrt( 8 + 8 ))  = 6
  9  -   9   /   sqrt(9)       = 6

Answer 2

let a = [2,2,2,2,2,2,2,2,2,2];
a[1]  +  a[1]  +  a[1]  = 6
2 +  2  + 2    = 6
a[3]  +  a[3]  +  a[3]  = 6
a[4]  +  a[4]  +  a[4]  = 6
a[5]  +  a[5]  +  a[5]  = 6
a[6]  +  a[6]  +  a[6]  = 6
a[7]  +  a[7]  +  a[7]  = 6
a[8]  +  a[8]  +  a[8]  = 6
a[9]  +  a[9]  +  a[9]  = 6

Answer 3

1 + 1 + 1 != 6
2 + 2 + 2 = 6
3 x 3 - 3 = 6
4 - 4 - 4 ! = 6
5 + 5 + 5 ! = 6
6 = 6 = 6 = 6
7 - 7 + 7 ! = 6
8 - 8 - 8 ! = 6
9 - 9 - 9 ! = 6

Answer 4

1 +  1  + 1   ! = 6
2 +  2  + 2    = 6
3 +  3  + 3   ! = 6
4 +  4  + 4   ! = 6
5 +  5  + 5   ! = 6
6 +  6  + 6   ! = 6
7 +  7  + 7   ! = 6
8 +  8  + 8   ! = 6
9 +  9  + 9   ! = 6