Teaching AP DSC School Assistant 2025 Mock Test Series Mathematics Limit and Continuity Continuity of a function
If f(x), defined \(f(x)=\left\{\begin{array}{lll} k x+1 & \text { if } & x \leq \pi \\ \cos x & \text { if } & x>\pi \end{array}\right.\) is continuous at x = π, then the value of k is :
1
0
2
π
3
\(\frac{2}{\pi}\)
4
\( -\frac{2}{\pi}\)