Question

Prove that a no. of the form (n²-n) is always an even no. , where n is any positive integer​

Answer 1

Step-by-step explanation:

let n is equals to 2,3,4

n²-n= 2²-2=2

=3²-3=6

=4²-4=12

so all show even numbers .

Answer 2

Answer:

Step-by-step explanation:

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