▲ 34 r/calculus
What's wrong with my solution?(Sorry for my handwriting)
I took the radius of the shell as (2-y) because the distance formula is r = √(-2-(-y))² on the interval [-1, 0] of y. Is it right to choose -y because it is below the x-axis?
u/Han_Htoo_Aein — 3 days ago