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Q.
If log7(2) = m, then log49(28) is equal to ?
A.
1/(1+2m)
B.
(1+2m)/2
C.
2m/(2m+1)
D.
(2m+1)/2m
View Answer
Correct choice: B
Explanation:
log49(28) = 1/2log7(7×4) = 1/2+1/2(2log7(2)) = 1/2+log7(2) = 1/2 + m = 1+2m/2.
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