The value of \( a \) for which the function \( f(x)=\left\{\begin{a...

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The value of \( a \) for which the function \( f(x)=\left\{\begin{array}{ll}5 x-4 & , \text { if } 0x \leq 1 \\ 4 x^{2}+3 a x & , \text { if } 1x2\end{array}\right. \) is continuous at every point of its domain, is
(a) \( 13 / 3 \)
(b) 1
(c) 0
(d) \( -1 \)
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