If m, n belongs to N and m^2-n^2=13,then (m+1)(n+1)is equal to
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Step-by-step explanation:
Given,
m and n are natural numbers,
Such that,
( Because, 13 is a prime number and the sum or subtraction of two natural numbers can not be a fraction )
Also, for natural numbers,
m + n > m - n
Thus, m + n = 13 and m - n = 1,
By solving these equations,
We get, m = 7 and n = 6,
Now,
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