Which of the following is an equation of a hyperboloid of two sheets?
A) x2 + y2 - z2 = 0
B) x2 - y2 - z2 = -1
C) z2 = 1 - x2 - y2
D) x2 + y2 + 1 = z2
E) z = - x2 - y2
Correct Answer:
Verified
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