Let `f (x)=` signum (x) and `g (x) =x (x ^(2) -10x+21),` then the number of points of discontinuity of `f [g (x)]` is

If f(x) = sgn (x) and g (x) = (1-x^2) ,then the number of points of discontinuity of function f (g (x)) is -

Let g(x) = f(f(x)) where f(x) = { 1 + x ; 0 <=x<=2} and f(x) = {3 - x; 2 < x <= 3} then the number of points of discontinuity of g(x) in [0,3] is :

Let f(x)=g(x)sgn(x^(3)+6x^(2)+11x+6) where sgn denotes signum function and f(x)=ax^(3)+x^(2)+x+1, then minimum number of points of discontinuity of the function f(x) is

Let g(x)=f(f(x)) where f(x)={1+x;0<=x<=2} and f(x)={3-x;2

If f(x)=(1+x)/([x]),x in[1,3] , then the number of points of discontinuity are (where [.] is G.I.F.)

[" If "],[" f(x) "=sgn(3x cos^(-1)(x)-6cos^(-1)(x)-pi x+2 pi)],[" ,then the number of points "],[" of discontinuity of "f(x)" is/are "],[" [Note: sgn k denotes signum "],[" function of k.] "]

If f(x)=(1)/(x-1) and g(x)=(x-2)/(x+3), then number of points of discontinuity in f(g(x))is(1)1(2)2(3)3(4)4

Let f(x)=(1)/(x-4) and g(x)=(1)/(x^(2)-3x+2) be two real valued functions, then the number of points of discontinuity of (gof)(x) in R is