log3(1/9) এর মান-
A
2
B
- 2
C
3
D
- 3
উত্তরের বিবরণ
প্রশ্ন: log3(1/9) এর মান-
সমাধান:
log3(1/9)
= log3(1/32)
= log3(3- 2)
= - 2log33
= - 2 × 1
= - 2
0
Updated: 1 month ago
log3√2(1/324) এর
মান কত?
Created: 1 month ago
A
- 1
B
2
C
3
D
- 4
সমাধান:
দেওয়া আছে,
log3√2(1/324)
= log3√2{1/(3√2)4}
= log3√2(3√2)- 4
= - 4 log3√2(3√2)
= - 4 ;[logaa = 1]
0
Updated: 1 month ago
logx(1/8) = - 2 হলে, x = কত?
Created: 1 week 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: 1 week ago
logax = 1, logay = 2, logaz = 3 হলে, loga(x3y2/z) এর মান কত?
Created: 3 weeks ago
A
1
B
2
C
4
D
5
প্রশ্ন: logax = 1, logay = 2, logaz = 3 হলে, loga(x3y2/z) এর মান কত?
সমাধান:
loga(x3y2/z)
= loga(x3y2) - logaz [logaM/N = logaM - logaN]
= logax3 + logay2 - logaz [logaMN = logaM + logaN]
= 3logax + 2logay - logaz
= 3 × 1 + 2 × 2 - 3
= 3 + 4 - 3
= 4
0
Updated: 3 weeks ago
