f(x)=Sgn(x) and g(x)=x(x2-5x+6). Then functiion f{g(x)} is discontinuous at1. Infinitely many points2. Exactly one point3. Exactly three points4. No point
f(x)=Sgn(x) and g(x)=x(x2-5x+6). Then functiion f{g(x)} is discontinuous at
1. Infinitely many points
2. Exactly one point
3. Exactly three points
4. No point