-1 112
-1
1
5
Correct answer is D
log2 8 – log3 19
= log 2 23 – log3 9−1
= log2 23 – log3 3−2
Based on law of logarithm
= 3 log2 2 – (-2 log3 3)
But log2 2 = 1,
log3 3 = 1
So, = 3 + 2
= 5
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