A) 1
B) 5
C) 8
D) 9
Correct Answer: D
Solution :
\[xy=4\Rightarrow {{9}^{k-1}}+7=4,\,{{3}^{k-1}}+4\] \[{{3}^{2(k-1)}}-{{4.3}^{k-1}}+3=0\Rightarrow k=1\] or 2 Hence, \[({{1}^{3}}+{{2}^{3}})=9\] Ans.You need to login to perform this action.
You will be redirected in
3 sec