№1.11. Build the surface and determine their view of a) x2 - 7y2 - 14z2 - 21 = 0; b) 2 y = x2 + 4z2.
№2.11. Write the equation and determine the type of the surface obtained by the rotation of the line around the specified axes, making pattern. a) x2 = - 4z; 0z; b) y2 + 4z2 = 4; Oy.
№3.11. Build a body bounded by said surfaces:
a) y = x; y = 0; x = 1; z = 3x2 + 2y2; z = 0.
b) z = 10 · (x2 + y2) + 1; z = 1 - 20 y.

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