Answer:
f(x)=cos(x)
The amplitude is equal to 1. The period is 2π.
Answer:
yup
Step-by-step explanation:
9514 1404 393
Answer:

Step-by-step explanation:
The interval of interest becomes the limits of integration. ∆x becomes dx, and the xi are replaced by the variable of integration, x.
The product of a number y and 12 or 12 times a number y. These are both equivalent expressions to 12y