Let \[f(x)=\alpha (x)\beta (x)\gamma (x)\] for all real x, where \[\alpha (x),\beta (x)\] and \[\gamma (x)\] are differentiable functions of\[x.\] If \[f'(2)=18f(2),\alpha '(2)=3\alpha (2),\beta '(2)=-4\beta (2)\] and \[\gamma '(2)-k\gamma (2),\] then the value of k is

Let \[f(x)=\alpha (x)\beta (x)\gamma (x)\] for all real x, where \[\al

1.	Let \[f(x)=\alpha (x)\beta (x)\gamma (x)\] for all real x, where \[\alpha (x),\beta (x)\] and \[\gamma (x)\] are differentiable functions of\[x.\] If \[f'(2)=18f(2),\alpha '(2)=3\alpha (2),\beta '(2)=-4\beta (2)\] and \[\gamma '(2)-k\gamma (2),\] then the value of k is
A.	14
B.	16
C.	19
D.	None of these
Answer» D. None of these

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Let \[f(x)=\alpha (x)\beta (x)\gamma (x)\] for all real x, where \[\alpha (x),\beta (x)\] and \[\gamma (x)\] are differentiable functions of\[x.\] If \[f'(2)=18f(2),\alpha '(2)=3\alpha (2),\beta '(2)=-4\beta (2)\] and \[\gamma '(2)-k\gamma (2),\] then the value of k is

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