A) - 15
B) 6
C) - 10
D) - 4
Correct Answer: A
Solution :
\[-6.10k+\frac{11.1.31}{4}-6{{\left( \frac{31}{2} \right)}^{2}}+10{{\left( \frac{1}{2} \right)}^{2}}-k{{\left( \frac{11}{2} \right)}^{2}}=0\] \[\Rightarrow -k\frac{361}{4}=\frac{5415}{4}\Rightarrow k=-15\].
You need to login to perform this action.
You will be redirected in
3 sec
