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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
16 Oct 2021

Given information

Here given a function  .

We have to Show that is continuous on  .

Step-by-step explanation

Step 1.

By theorem 7, the trigonometric function are continuous. Thus, on and on are continuous. 

Thus, is continuous on .

To check continuity of  at , we will evaluate left hand limit and right hand limit.

   as the sine function is continuous at .

  by continuity of cosine function at .

Thus,    

Therefore, is continuous at , so  is continuous on .

 

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