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a + b = 6, a - b = 4 হলে
$i . a ² - b ² = 24$
$i i . a ² + b ² = 26$
$i i i . 4 a b = 20$
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Created: 8 months ago | Updated: 8 months ago

Updated: 8 months ago

i ও ii

i ও iii

ii ও iii

i, ii ও iii

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