Let P(x) = 3x^6 – 5x^3+ ax^2+ bx + 10. If P(-1) = P(2) = 0, find the values of a
and b.

Find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified line. y = x â’ 1 , y = 0, x = 5; about the x-axis v = sketch the region. sketch the solid, and a typical disk or washer.