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प्रश्न
Evaluate:
(0.3) × (0.3) – (0.2) × (0.2)
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उत्तर
Given, (0.3) × (0.3) – (0.2) × (0.2)
∵ `0.3 = 3/10` and `0.2 = 2/10`
∴ `(3/10 xx 3/10) - (2/10 xx 2/10) = 9/100 - 4/100`
= `(9 - 4)/100`
= `5/100`
= 0.05
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