(x - 1)(x2 + x + 1)- এর গুণফল কত হবে?
x3 - 3
(x - 1)3
x3 - 1
x3 + 4x2 +1
1/2{(a + b)2 + (a - b)2} = কত?
a2 + b2
a2 - b2
(a + b)2/2 - (a - b)2/2
(a + b)2 + ( a - b)2
9c2 + 14c এর সঙ্গে কত যোগ করলে যোগফল একটি পূর্ণবর্গ হবে?
49/9
14/9
7
7/3
x + y + z = 15 এবং x2 + y2 + z2 = 83 হলে, xy + yz + zx এর মান কোনটি?
71
72
32
16
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