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Domain of f is D1 and g is D2. Then domain of f+g is (a)D1/D2 (b) D1-(D1/D2) (C)D2 /(D2/D1) (D) D1 ∩ D2 More than one correct. Explain how?

Domain of f is D1 and g is D2. Then domain of f+g is


(a)D1/D2 (b) D1-(D1/D2) (C)D2 /(D2/D1) (D) D1 ∩ D2


More than one correct. Explain how?

Grade:12th Pass

2 Answers

Ashwin Muralidharan IIT Madras
290 Points
10 years ago

Hi Aditi,

 

For the sum to be defined, both the functions should be defined in the Domain.

 

Which will be possible only when Domain is D1∩D2.

Option (D).

 

Hope that helps.

 

Best Regards,

Ashwin (IIT Madras).

Labajit Kalita
13 Points
one year ago
Let us take

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