A) 3
B) ? 3
C) 9
D) ? 6
Correct Answer: A
Solution :
Obviously, \[3\times 4+(-2)\times 3+2\times (-k)=0\] \[\Rightarrow \,\,12-6-2k=\,0\Rightarrow \,\,k=3.\,\,\,\]You need to login to perform this action.
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