Q18 Examine the following functions for continuity :
(i) f(x) =  

x / |x| , x ≠ 0

0,    x = 0

at x = 0

(ii) f(x)=  

x - 4 / 2|x - 4| , x ≠ 4

0,       x = 4

at x = 4

Solution

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