NCERT Class 12-Mathematics: Chapter –5 Continuity and Differentiability Part 10
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Question 4:
Answer:
We have,
At
And
Question 5:
Answer:
At
So, is discontinuous at
Question 6:
Answer:
We have,
At
Since.
So, is continuous at .
Question 7:
Answer:
We have, .
At
S0, is continuous at