LimitsHard
Question
Let f(x) = [cos x + sin x], 0 < x < 2π, where [.] denotes G.I.F. The number of points of discontinuity of f(x) is-
Options
A.6
B.5
C.4
D.3
Solution
f(x) = 
discontinuity may arise at the points where
sin
, sin 
and sin 
= 0
x =
; x = 
, 
; x = 
five points
discontinuity may arise at the points where
sin
, sin and sin = 0x =
; x = , ; x = five pointsCreate a free account to view solution
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