Question

Hey guys please solve this question it's really important please

Answer 1

ok

Step-by-step explanation:

Any odd positive integer n can be written in form of 4q + 1 or 4q + 3

If n = 4q + 1 , when n^ 2 -1=(4q+1)^ 2 -1=16q^ 2 +8q+

1 - 1 = 8q * (2q + 1) which is divisible by 8.

If n = 4q + 3 , when n ^ 2 - 1 = (4q + 3) ^ 2 - 1 = 16q ^ 2 + 24q

9 - 1 = 8(2q ^ 2 + 3q + 1) which is divisible by 8.

So, it is clear that n ^ 2 - 1 is divisible by 8, if n is an odd positive integer.

hope it help u buddy

Answer 2

Answer:

hi, it's aslamm1 here,  i request you to answer all my questions stay in my account aslamm1 when i post new question then immediately start solving it. until answer my questions

Step-by-step explanation:

1.(a) integer

2.(b) 2

3.(a) 13

4. (a) Both the assertion and the reason are correct and the reason is the correct explanation of the assertion

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