MCQ
$\text{f}(\text{x})={\frac{\text{|x|}}{\text{x}}}$ for $ \text{x} ≠ 0$ and $ 0$ for $ \text{x} = 0$ Which function is this?
- AConstant
- BModulus
- CIdentity
- DSignum function
Solution:
$\text{f}(\text{x})={\frac{\text{|x|}}{\text{x}}}$ {for $ \text{x} ≠ 0$ and 0 for $ \text{x} = 0$}.
Function is {(-3, -1), (-2, -1), (-1, 1), (0, 0), (1, 1), (2, 1), (3, 1), …….}
This is signum function.
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