At What Points Is the Given Function Continuous?
- $f ( x , y ) = \tan ( x + y )$

question 90

Multiple Choice

At what points is the given function continuous?
- $f ( x , y ) = \tan ( x + y )$

• A) All \(( x , y ) \neq \left( \frac { \pi } { 2 } , \frac { \pi } { 2 } \right)\)
• B) All \(( x , y ) \neq ( 0,0 )\)
• C) All \(( x , y )\) such that \(x + y \neq \frac { ( 2 n + 1 ) \pi } { 2 }\), where \(n\) is an integer
• D) All ( \(x , y )\)

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