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CalculusQ&A LibraryIdentify and sketch the surfaces in Exercises 65–76. 65. x2 + y2 + z2 = 4 66. x2 + (y - 1)2 + z2 = 1 67. 4x2 + 4y2 + z2 = 4 68. 36x2 + 9y2 + 4z2 = 36 69. z =-(x2 + y2) 70. y =-(x2 + z2 ) 71. x2 + y2 = z2 72. x2 + z2 = y2 73. x2 + y2 - z2 = 4 74. 4y2 + z2 - 4x2 = 4 75. y2 - x2 - z2 = 1 76. z2 - x2 - y2 = 1Start your trial now! First week only $4.99!*arrow_forward*

Question

Identify and sketch the surfaces in Exercises 65–76.

65. x2 + y2 + z2 = 4

66. x2 + (y - 1)2 + z2 = 1

67. 4x2 + 4y2 + z2 = 4

68. 36x2 + 9y2 + 4z2 = 36

69. z =-(x2 + y2)

70. y =-(x2 + z2 )

71. x2 + y2 = z2

72. x2 + z2 = y2

73. x2 + y2 - z2 = 4

74. 4y2 + z2 - 4x2 = 4

75. y2 - x2 - z2 = 1

76. z2 - x2 - y2 = 1

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