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. ...
Rating : 5
