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যদি x + y = 3 এবং x - y = 1 হয় তবে $x^{2} + y^{2} =$ কত?

Created: 1 year ago | Updated: 1 year ago

Updated: 1 year ago

5

3

2

1

অষ্টম শ্রেণি (মাধ্যমিক) গণিত অনুশীলনী ৪.১

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