if n is an odd positive integer show that n square minus 1 is divisible by 8
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Ans I 3 coz 3 ka square is 9 न 9 - 1 =8
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Soln:- Suppose we take any no.
Let the odd positive integer be 11
A/q
11^2-1
121-1
120
120÷8
=15
Because 120 is completely divisible by 8
Hence condition satisfied
Similarly we can check other one
Let the odd positive integer be 11
A/q
11^2-1
121-1
120
120÷8
=15
Because 120 is completely divisible by 8
Hence condition satisfied
Similarly we can check other one
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