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statuscvo [17]
3 years ago
9

How to solve 19,20,21??????

Mathematics
1 answer:
Doss [256]3 years ago
3 0

Answer:

19. undefined, thus no answer

20. yes, answer is 0

21. yes, answer is 5

Step-by-step explanation:

all requires application on the laws and special cases of logarithm

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