व यदि m+n=5 और mn=6 हो तो (m+n' ) (m+n') = क्या होगा? सालें।
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Answer:
m+n=5,mn=6
m=2 , n =3 so,
(m+n) (m+n)
(2+3) (2+3)
=2(2+3)+3(2+3)
=4+6+6+9
=25
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