Let \( f(x)=\left\{\begin{array}{cc}a x+1, & x1 \\ 3, & x=1 \\ b x^...

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Let \( f(x)=\left\{\begin{array}{cc}a x+1, & x1 \\ 3, & x=1 \\ b x^{2}+1, & x1\end{array}\right. \) the value of \( a \) and \( b \) for
\( \mathrm{P} \)
W
which \( f(x) \) is continuous at \( x=1 \), is given by
(1) 2,2
(2) 1,2
(3) 3,2
(4) 1, 1
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