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Grade: 12th pass 

                        
examine continuity and differentiability of f(x)at x=0 where f(x)=xcos(1/x),x is not equal to 0 and f(x)=0 ,x=0
4 years ago

Answers : (1)

Harsh Patodia
IIT Roorkee
askIITians Faculty
907 Points 
							PFA

For differentiability follow same steps applying f(x+h)-f(x)/h for RDH and f(x-h) – f(x)/-h applying the limits.
228-1327_1.PNG
4 years ago
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