প্রশ্ন ও উত্তর
x+y+z = 7 এবং xy + yz + z.x = 10 হলে x2+ y2 +z2 এর মান
গণিত বীজগণিত 21 Mar, 2025
প্রশ্ন x+y+z = 7 এবং xy + yz + z.x = 10 হলে x2+ y2 +z2 এর মান
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