I have simplified this function: y(x) = (2x3 (cos x)(sin √x)) / -x3 to this: -2(cos x)(sin √x). I then tried to find the area under the graph between 2 and 3.6.
Does the integral come out to -2(sin x)(-cos √x)? Because when calculating it with 3.6, minus that function with 2, I got 0.05573 instead of the correct answer of 2.66 (Grapher output).
Working
Does the integral come out to -2(sin x)(-cos √x)? Because when calculating it with 3.6, minus that function with 2, I got 0.05573 instead of the correct answer of 2.66 (Grapher output).
Working