Factorize
`(i) (x^2-(y^2)/(100))`
`(ii)(100-9x^2)`
`(iii)(49x^2-(1)/(4))`

Explanation

Let's factorize the given expressions step by step.

### (i) Factorize \( x^2 - \frac{y^2}{100} \)

1. **Rewrite the expression**:
\[ x^2 - \frac{y^2}{100} = x^2 - \left(\frac{y}{10}\right)^2 \]
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