A) 76
B) 52
C) -52
D) -76
Correct Answer: B
Solution :
\[{{\alpha }^{3}}+{{\beta }^{3}}={{(\alpha +\beta )}^{3}}-3\alpha \beta (\alpha +\beta )\] \[={{(4)}^{3}}-3\times 1(4)=52\]You need to login to perform this action.
You will be redirected in
3 sec