A
0.25
B
0.018
C
0.09
D
0.08
উত্তরের বিবরণ
0
Updated: 3 days ago
log10 0.01 = ?
Created: 1 month ago
A
2
B
- 2
C
- 1/2
D
0.02
প্রশ্ন: log10 0.01 = ?
সমাধান:
log10 0.01
= log10(1/100)
= log10(1/102)
= log10(10- 2)
= - 2 log1010
= (- 2) × 1 [ log1010 =1 ]
= - 2
0
Updated: 1 month ago
logx(0.0001) = - 4 হলে x এর মান কত?
Created: 3 days ago
A
4
B
10
C
64
D
1000
সমাধান:
logx(0.0001) = - 4
⇒ x- 4 = 0.0001 [logab = c হলে, ac = b]
⇒ x- 4 = 1/10000
⇒ x- 4 = 1/104
⇒ x- 4 = (1/10)4
⇒ x- 4 = 10- 4
∴ x = 10
0
Updated: 3 days ago
logx (1/27) = - 3 হলে x এর মান কত?
Created: 1 month 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 month ago
