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Anurag Kishore Grade: 12
        

is the function


f(x) = mod (tan x)


differentiable at x = pi/2


 


Plz reply 

7 years ago

Answers : (1)

Askiitians Expert Soumyajit IIT-Kharagpur
28 Points
										

Dear STUDENT NAME,


Ans:- f(x)=|tanx| is a function which is positive everywhere. If we draw the graph of it we can see that we get continuous graph except the points n∏/2 (where n is an integer) because it tends to infinite at those points. As a function which is not continuous at a point is not differentiable at that point also hence at the point ∏/2 |tanx| is not differentiable


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Askiitians Experts
Soumyajit Das IIT Kharagpur

7 years ago
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