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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
2 Nov 2021

Given information

Consider the given data, we have to prove that:

 

Step-by-step explanation

Step 1.

 Consider the SANDWITCH theorem

If

 

And

And

 

Then

 

We know that

 

Multiply throughout by  

 

 

Therefore sandwich theorem is applicable.

 

And

 

Therefore by sandwich theorem

 

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