U = {x ∈ N : 1 ≤ x ≤ 10}, A = {1, 5, 10} হলে,
Ac =?
A
{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
B
{2, 3, 4, 6, 7, 8, 9}
C
{1, 5, 10}
D
{4, 6, 7, 8, 9, 10}
উত্তরের বিবরণ
প্রশ্ন: U = {x ∈ N : 1 ≤ x ≤ 10}, A = {1, 5, 10} হলে, Ac =?
সমাধান:
দেওয়া আছে,
U = {x ∈ N : 1 ≤ x ≤ 10}
= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
A = {1, 5, 10}
Ac = U - A
= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} - {1, 5, 10}
= {2, 3, 4, 6, 7, 8, 9}
0
Updated: 2 months ago
x2 - 7x + 12 ≤ 0 এর সমাধান সেট -
Created: 6 months ago
A
(- ∞, 3]
B
(3, 4)
C
[3, 4]
D
[4, ∞)
0
Updated: 6 months ago
P = {x ∈ N : 2 < x ≤ 8} এবং Q = {x ∈ N : x বিজোড় এবং x ≤ 9} হলে, P ∪ Q = কত?
Created: 3 weeks ago
A
{3, 5, 7}
B
{4, 6, 8}
C
{1, 2, 3, 4, 5, 6, 7, 8, 9}
D
{1, 3, 4, 5, 6, 7, 8, 9}
প্রশ্ন: P = {x ∈ N : 2 < x ≤ 8} এবং Q = {x ∈ N : x বিজোড় এবং x ≤ 9} হলে, P ∪ Q = কত?
সমাধান:
P = {x ∈ N : 2 < x ≤ 8}
= {3, 4, 5, 6, 7, 8}
Q = {x ∈ N : x বিজোড় এবং x ≤ 9}
= {1, 3, 5, 7, 9}
সুতরাং, P ∪ Q = {3, 4, 5, 6, 7, 8} ∪ {1, 3, 5, 7, 9}
= {1, 3, 4, 5, 6, 7, 8, 9}
0
Updated: 3 weeks ago
A= {x ∈ IN | 5 < x ≤ 10} এবং B={x ∈ IN | x জোড় এবং x < 12} হলে, A ∩ B = কত?
Created: 1 month ago
A
{7, 9}
B
{6, 8, 10}
C
{2, 4, 6, 7, 8, 9, 10}
D
{6, 7, 8, 9, 10}
প্রশ্ন: A= {x ∈ IN | 5 < x ≤ 10} এবং B={x ∈ IN | x জোড় এবং x < 12} হলে, A ∩ B = কত?
সমাধান:
⇒ A = {x ∈ IN | 5 < x ≤ 10} = {6, 7, 8, 9, 10}
⇒ B = {x ∈ IN | x জোড় এবং x < 12} = {2, 4, 6, 8, 10}
∴ A ∩ B = {6, 7, 8, 9, 10} ∩ {2, 4, 6, 8, 10} = {6, 8, 10}
সুতরাং, A ∩ B = {6, 8, 10}
0
Updated: 1 month ago
