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प्रश्न
Factorise the following using appropriate identity:
`x^2 - y^2/100`
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उत्तर
`x^2 - y^2/100 = x^2 - (y/10)^2`
= `(x+y/10)(x-y/10)` ...[x2 − y2 = (x + y)(x − y)]
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