A) 2
B) 4
C) 6
D) 8
Correct Answer: D
Solution :
\[(2)(3)(\lambda )+2(7)(4)\frac{7}{2}-2{{(7)}^{2}}-3{{(4)}^{2}}-\lambda {{\left( \frac{7}{2} \right)}^{2}}=0\] \[\Rightarrow 6\lambda +196-98-48-\frac{49\lambda }{4}=0\Rightarrow \lambda =8\].You need to login to perform this action.
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