2018
Mathematics
67ca00ce0c643c71d77dee1f
Evaluate log2 8 – log3 1/9
A.
-11(1/2)
B.
-1
C.
1
D.
5
Correct Answer: 5
Explanation
log2 8 – log3 1/9 = log2 23 – log3 9−1 = log223 – log3 3−2 Based on law of logarithm = 3 log2 2 – (-2 log3 3) Butlog2 2 = 1, log3 3= 1 So, = 3 + 2 = 5
log2 8 – log3 1/9 = log2 23 – log3 9−1 = log223 – log3 3−2 Based on law of logarithm = 3 log2 2 – (-2 log3 3) Butlog2 2 = 1, log3 3= 1 So, = 3 + 2 = 5THIS WEEK's
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