MATH1061 (ND) Canvas Quiz 9

Which of the following is equal to ∫ − 𝜋 𝜋 𝑓 ( 𝑥 ) 𝑑 𝑥 correct to 3 decimal places, where 𝑓 ( 𝑥 ) = { − 4 𝑥 if  − 𝜋 ≤ 𝑥 ≤ 0 3 − 3 cos ⁡ 𝑥 if  0 < 𝑥 ≤ 𝜋 .