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Question

Mathematics Question on Continuity and differentiability

f(x)={3x8if x5 2kif x>5f(x) = \begin{cases} 3x-8 & \text{if } x \leq 5 \\\ 2k & \text{if } x > 5 \end{cases}

A

27\frac27

B

72\frac72

C

37\frac37

D

47\frac47

Answer

72\frac72

Explanation

Solution

The correct option is (B): 72\frac72