A
১৪
B
১৫
C
১২
D
১৬
উত্তরের বিবরণ

0
Updated: 3 months ago
2x4 - 5x3 + 6x2 - 5x + 2 এর উৎপাদক কোনটি?
Created: 2 months ago
A
x - 1
B
x + 2
C
x + 1
D
x - 2
প্রশ্ন: 2x4 - 5x3 + 6x2 - 5x + 2 এর উৎপাদক কোনটি?
সমাধান:
2x4 - 5x3 + 6x2 - 5x + 2
= 2x4 - 2x3 - 3x3 + 3x2 + 3x2 - 3x - 2x + 2
= 2x3(x - 1) - 3x2(x - 1) + 3x(x - 1) - 2(x - 1)
= (x - 1)(2x3 - 3x2 + 3x - 2)

0
Updated: 2 months ago
x+ 1/x= √3 হলে x 3 + 1/x 3 = ?
Created: 3 months ago
A
6
B
4
C
0
D
2

0
Updated: 3 months ago
(a2 + b2- c2 + 2ab)/(a2 - b2 + c2 + 2ac) = কত?
Created: 1 month ago
A
a + b + c
B
(a + b - c)/(a - b + c)
C
(a - b + c)/(a + b - c)
D
(a + b - c)/(a + b + c)
প্রশ্ন: (a2 + b2 - c2 + 2ab)/(a2 - b2 + c2 + 2ac) = কত?
সমাধান:
(a2 + b2 - c2 + 2ab)/( a2 - b2 + c2 + 2ac)
= [(a + b)2 - c2]/[(a + c)2 - b2]
= [(a + b + c)(a + b - c)]/ [(a + b + c)(a - b + c)]
= (a + b - c)/(a - b + c)

0
Updated: 1 month ago