№1.13. Build surfaces and determine their type a) –16x2 + y2 + 4z2 - 32 = 0; b) 6x2 + y2 - 3z2 = 0;
№2.13. Write the equation and determine the type of surface obtained by rotating this line around the specified coordinate axis, make a picture: a) z2 = 2y; Oy; b) 2x2 + 3z2 = 6; Oz.
№3.13. Build a body bounded by the specified surfaces: a) y = x; y = 0; x = 2; z = 0. PRINT, no limit from above.
NOT SOLVED b) x + y = 2; ...; z = 2x; z = 0.