Question

If $f(x)=\begin{cases} 2x+8, & 1\le x\le2 \\\ 6x, & 2\lt x \lt4\end{cases}$, then $\int_1^4f(x)$ is :

• A. 43
• B. 45
• C. 47
• D. 46

Answer 1

Answer: (C)

47

Answer 2

The correct option is (C) :47.