Aptitude - Logarithm - Discussion
Discussion Forum : Logarithm - General Questions (Q.No. 6)
6.
| If log10 7 = a, then log10 |  |
1 |  |
is equal to: |
| 70 |
Answer: Option
Explanation:
|
= log10 1 - log10 70 | |||||
| = - log10 (7 x 10) | ||||||
| = - (log10 7 + log10 10) | ||||||
| = - (a + 1). |
Discussion:
33 comments Page 4 of 4.
Nkululeko said:
1 decade ago
How you got second step?
Amrutha said:
1 decade ago
loga 1 = 0 so log 10 1 = 0
Nithin said:
1 decade ago
Yes how did we get the second step?
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