SOLUTION: write the following logarithms as single log 1)1-log20 base of 2 2)3/4log18

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Question 1204595: write the following logarithms as single log
1)1-log20 base of 2
2)3/4log18
Found 2 solutions by josgarithmetic, greenestamps:
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Only I do the first of those.
1-log%282%2C20%29, One minus logarithm base two of twenty

log%282%2C2%29-log%282%2C20%29

log%282%2C%282%2F20%29%29------------or if prefered, log%282%2C%281%2F10%29%29, .... OR,...

Answer by greenestamps(13209) About Me  (Show Source):
You can put this solution on YOUR website!


(1) 1-log20 base of 2

Use log%28%28A%29%29-log%28%28B%29%29=log%28%28A%2FB%29%29

I don't know the answer, because "log20 base of 2" could mean either log%282%2C%28%2820%29%29%29 or log%2820%2C%28%282%29%29%29

Note you will need to use either 1=log%282%2C%28%282%29%29%29 or 1=log%2820%2C%28%2820%29%29%29

(2) 3/4log18

Use A%2Alog%28%28B%29%29=log%28%28B%5EA%29%29

That one should be easy for you to do.