Teht. 521

Teht. 521

g(x) = (-x) - 1
f(x) = sqrt((-x^(2)) - (6 * x) - 5)
h(x) = (-sqrt((-x^(2)) - (6 * x) - 5))
a = IntegralBetween(g, f, -3, -1)
b = Surface(t, (abs(f(t)) * cos(s)), (abs(f(t)) * sin(s)), t, -3, -1, s, 0, (2 * π))
c = Surface(t, (abs(g(t)) * cos(s)), (abs(g(t)) * sin(s)), t, -3, -1, s, 0, (2 * π))