Please help me with this calculus question?

Question

Find the area between f(x) = sin x and the x-axis from 0 to 3π/4

Thank you!

Answer 1

The function

Area under a curve region bounded by the given function vertical lines and the x - axis

x = a and x = b given by

In this case 0 < x < 3π/4

a = 0 and b = 3π/4

Approximate area  is 1.7072 squre units.