Continuity and DifferentiabilityHard
Question
If f(x) = 
, x ≠ 
, x ∈ 
is a continuous functions, then f(π /4) is equal to-
, x ≠ , x ∈ is a continuous functions, then f(π /4) is equal to-Options
A.-1 / 2
B.1 / 2
C.1
D.-1
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