Aptitude - Logarithm - Discussion

Discussion Forum : Logarithm - General Questions (Q.No. 6)
6.
If log10 7 = a, then log10 1 is equal to:
70
- (1 + a)
(1 + a)-1
a
10
1
10a
Answer: Option
Explanation:
log10 1
70
= log10 1 - log10 70
= - log10 (7 x 10)
= - (log10 7 + log10 10)
= - (a + 1).
Discussion:
33 comments Page 3 of 4.

Shraddha Patel said:   3 years ago
Thanks for the explanation @Rohit.
(2)

Gyan said:   1 decade ago
How do you get second step here ?

Souradeep said:   7 years ago
How to get this? Please explain.

Buncy said:   1 decade ago
How did you got the second step?

Anush said:   1 decade ago
How you got this second step?

Amrutha said:   1 decade ago
loga 1 = 0 so log 10 1 = 0

Nkululeko said:   1 decade ago
How you got second step?

Subhajit said:   8 years ago
How to -log10(7*10)?

Majnu said:   1 decade ago
Is log10 1 Zero...?

Giri said:   5 years ago
Thank you @Rohit.
(1)


Post your comments here:

Your comments will be displayed after verification.