A) 8
B) 4
C) - 8
D) - 4
Correct Answer: C
Solution :
Given that - m + n = - 2 ... Cubing both sides - \[\left( {{m}^{3}}+{{n}^{3}} \right)~={{\left( -2 \right)}^{3}}\]\[{{m}^{3}}+{{n}^{3}}+3mn\left( m+n \right)=-8\] \[{{m}^{3}}+{{n}^{3}}+3mn\left( -2 \right)=-8\] [From equation ] \[{{m}^{3}}+{{n}^{3}}-6mn=\]You need to login to perform this action.
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