Question

How to solve this additional mathematics question ?

Answer 1

We can use some funky properties of integrals here to express the integral in terms of ones we already know. Note that,

`\int^4_1{[3f(x)+2]}dx = 3\int^4_1f(x) dx + \int2dx` then,

`=(3 * 10) + \int^4_1{2}dx`, since we know the value of
`\int^4_1f(x)_`.

I will leave you to complete the remaining, easy steps.