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Arjun Singh

· started a discussion

· 1 Months ago

Using Equation (Question:508268.0)

(m+n)^2 + (m-n)^2 = 2 (m^2 + n^2)
Hence, Ans. 4

Question:

If m + n =  5    and m – n =  3   , then the value of mn(m2 + n2) is —

Options:
A)

5

B)

6

C)

2

D)

4

Solution:

Ans: (c)

  

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