Find Parametric Equations for the Cylinder $y ^ { 2 } + z ^ { 2 } = 49$

question 8

Multiple Choice

Find parametric equations for the cylinder $y ^ { 2 } + z ^ { 2 } = 49$

• A) \(\vec { r } ( s , \theta ) = 7 \cos \overrightarrow { \theta i } + 7 \sin \theta \vec { j }\)
• B) \(\vec { r } ( s , \theta ) = 7 \cos \theta \vec { i } + 7 \sin \theta \vec { j } + s \vec { k }\)
• C) \(\vec { r } ( s , \theta ) = s \vec { i } + 49 \cos \theta \vec { j } + 49 \sin \theta \vec { k }\)
• D) \(\vec { r } ( s , \theta ) = \operatorname { si } + 7 \cos \theta \vec { j } + 7 \sin \theta \vec { k }\)
• E) \(\vec { r } ( s , \theta ) = \operatorname { si } + 7 \cos \theta \vec { j } + 7 \cos \theta \vec { k }\)

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