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Mathematics
Problem
Let $f(x)=\begin{cases} kx+3,& x\le 1, x^{2}+2x-1,& x>1. \end{cases}$ Determine the value of
k
k
k
so that
f
f
f
is continuous at
x
=
1
x=1
x
=
1
. a)
4
4
4
b)
−
1
-1
−
1
c)
0
0
0
d)
1
1
1
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