1.

Consider the function f defined by \(f\left( x \right) = \left\{ {\begin{array}{*{20}{c}} {{x^2} - 1,}&{x < 3}\\ {2ax,}&{x \ge 3} \end{array}} \right.\) for all real numbers x. If f is continuous at x = 3, then value of a

A. 8
B. 3 / 4
C. 1 / 8
D. 4 / 3
Answer» E.


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