Question

can someone please tell me how do you find the definite integral of 2sin(pi/4x)+4 with lim of x=5 to 9

Answer 1

integrate the whole function first before applying the limit boundary... this is sine a function of amplitude 2 and period \[T=2 \pi \times \frac{4}{\pi}=8\] at line y = 4 (horizontal line)...