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a + b = 13, a - b = 3 হলে-
$i . a^{2} - b^{2} = 39$
$i i . (a^{2} + b^{2}) = 178$
$i i i . 4 a b = 160$
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Created: 1 year ago | Updated: 1 year ago

Updated: 1 year ago

i ও ii

ii ও iii

i ও iii

i, ii ও iii

অষ্টম শ্রেণি (মাধ্যমিক) গণিত অনুশীলনী ৪.১

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