Math, asked by bj031986, 1 month ago

show that n square minus 1 is divisible by 8 if n is an odd positive integer​

Answers

Answered by liswi
0

Answer:

(n²-1)%8=0

1²=1

3²=9

5²=25

7²=49

9²=81

from above its evident that every square of an odd number is odd

(n+1)(n-1)

let's check with n= 1

2×0=0

divisible by 8

n=3

(3+1)(3-1)=8

divisible by 8

n=5

(6)(4)=8

divisible by 8

it is evident that from here any square of odd number is divisible by 8

Answered by pjahnabi007
2

Answer:

perfect Ãñswēr is in the attachment

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