A
1/5
B
2
C
5
D
1/2
উত্তরের বিবরণ
সমাধান:
log15 √15 = x
⇒ 15x = √15
⇒ 15x = (15)1/2
⇒ x = 1/2
0
Updated: 1 day ago
logx(1/8) = - 2 হলে, x = কত?
Created: 5 days ago
A
2
B
√2
C
2√2
D
4
প্রশ্ন: logx(1/8) = - 2 হলে, x = কত?
সমাধান:
logx(1/8) = - 2
⇒ x- 2 = 1/8
⇒ 1/x2 = 1/8
⇒ x2 = (2√2)2
⇒ x = 2√2
0
Updated: 5 days ago
logx (1/27) = - 3 হলে x এর মান কত?
Created: 1 day ago
A
- 2
B
- 3
C
6
D
3
সমাধান:
logx (1/27) = - 3
⇒ x- 3 = 1/27
⇒ x- 3 = 1/33
⇒ x- 3 = 3- 3
∴ x = 3
0
Updated: 1 day ago
log28 = কত?
Created: 3 weeks ago
A
4
B
3
C
2
D
1
প্রশ্ন: log28= কত?
সমাধান:
log28
= log2(2)3
= 3log22
= 3 × 1
= 3
0
Updated: 3 weeks ago
