Q)
For what values of a and b, the function f defined as : $ f(x) = \left\{ \begin{array}{l l} 3ax+b, & \quad \text{if $x$ < 1}\\ 11, & \quad \text{ if $x$ = 1} \\ 5ax-2b, & \quad \text{if $x$ > 1} \end{array} is \: continuous\: at\: x=1. \right.$
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