SOLUTION: Which one of the following is true? (1) log(7+3)=log7+log3 (2) (log10)^3=3log10 (3) ln(7e^10)=10+ln7 ? HELP.

Question 202241: Which one of the following is true? (1) log(7+3)=log7+log3 (2) (log10)^3=3log10 (3) ln(7e^10)=10+ln7 ? HELP.
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
laws of logarithms:
1.
2.
3.
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looking at your number 1:

this doesn't follow any rule above.
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looking at your number 2:

this looks like it follows rule # 3 above.
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looking at your number 3:

can't say this looks like any of the basic rules of logarithms.
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even though I'm not sure you wrote it correctly, number 2 is the only one that looks like it might be true.
The others don't look right.
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