Guest

The sum of the product if the ten numbers 1;2;3;4:5.-1.-2.-3.-4.-5 taking two at a time is ??. Pls explain the answer ....

The sum of the product if the ten numbers 1;2;3;4:5.-1.-2.-3.-4.-5 taking two at a time is ??. Pls explain the answer ....

Grade:12

1 Answers

Prajwal
28 Points
4 years ago
Its -55
As if you multiply ±1 ,±2 .....±5 .And add their product
Like:-
-1+(-4)+(-9)+(-16)+(-25) 
=-1-4-9-16-25=-55

Think You Can Provide A Better Answer ?