In the Previous Problem, Separate Variables Using $u ( r , \theta ) = R ( r ) \Theta ( \theta )$

question 35

Multiple Choice

In the previous problem, separate variables using $u ( r , \theta ) = R ( r ) \Theta ( \theta )$ . The resulting problems are

• A) \(R ^ { \prime \prime } + r R ^ { \prime } - r ^ { 2 } \lambda R = 0 , \Theta ^ { \prime \prime } + \lambda \Theta = 0 , \Theta ( 0 ) = 0 , \Theta ( \pi ) = 0\)
• B) \(R ^ { \prime \prime } + r R ^ { \prime } + r ^ { 2 } \lambda R = 0 , \Theta ^ { \prime \prime } + \lambda \Theta = 0 , \Theta ( 0 ) = 0 , \Theta ( \pi ) = 0\)
• C) \(r ^ { 2 } R ^ { \prime \prime } + r R ^ { \prime } - \lambda R = 0 , \Theta ^ { \prime \prime } - \lambda \Theta = 0 , \Theta ( 0 ) = 0 , \Theta ( \pi ) = 0\)
• D) \(r ^ { 2 } R ^ { \prime \prime } + r R ^ { \prime } + \lambda R = 0 , \Theta ^ { \prime \prime } + \lambda \Theta = 0 , \Theta ( 0 ) = 0 , \Theta ( \pi ) = 0\)
• E) \(r ^ { 2 } R ^ { \prime \prime } + r R ^ { \prime } - \lambda R = 0 , \Theta ^ { \prime \prime } + \lambda \Theta = 0 , \Theta ( 0 ) = 0 , \Theta ( \pi ) = 0\)

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Mass of lymphatic tissue located along the course of a lymphatic vessel.

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Unique molecules or molecular structures on the surface of pathogens, cells, or tissues that trigger an immune response when detected.