Vishwanath
Tuesday, February 19, 2013
10. |
If log | a | + | log | b | = log (a + b), then: | b | a |
|
A. | a + b = 1 | B. | a - b = 1 | C. | a = b | D. | a2 - b2 = 1 |
|
Answer: Option A
Explanation:
log | a | + log | b | = log (a + b) |
b | a |
log (a + b) = log |
| a | x | b |
| = log 1. |
b | a |
So, a + b = 1.
Title : Logarithms Q10
Description : 10. If log a + log b = log ( a + b ), then: b a A. a + b = 1 B. a - b = 1 C. a = b D. a 2 - b 2 = 1 Answer: Option A Explana...
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