If m is the successor of n, find the value of (n+m)2, where both n, m are positive integers.
A
4n2+4n−1
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B
4n2−4n+1
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C
4n2+4n+1
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D
4n2−4n−1
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Solution
The correct option is C4n2+4n+1 Given that n and m are positive integers
and m is successor of n so
m= n+1
lets apply the identity,(n+m)2=(n+n+1)2=(2n+1)2=4n2+1+4nHence,optionBisthecorrectanswer.