Is f(x)=∣x∣/xf(x) = |x|/xf(x)=∣x∣/x defined at x=0x = 0x=0?
Yes, f(0)=0f(0) = 0f(0)=0
Depends on context
Yes, f(0)=1f(0) = 1f(0)=1
No, undefined