SOLUTION: Use the properties of logarithms to find the exact value of the expression log7 25*log5 10*log10 49??????

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Question 152082: Use the properties of logarithms to find the exact value of the expression log7 25*log5 10*log10 49??????
Answer by orca(409) About Me  (Show Source):
You can put this solution on YOUR website!
Use this logarithmic property:
log(b)a = log(c)a/log(c)b
*************************************************************************
log(7) 25*log(5) 10*log(10)49
=%28ln25%2Fln7%29%28ln10%2Fln5%29%28ln49%2Fln10%29
=%28ln5%5E2%2Fln7%29%28ln10%2Fln5%29%28ln7%5E2%2Fln10%29
=%282%2Aln5%2Fln7%29%28ln10%2Fln5%29%282%2Aln7%2Fln10%29
=
=4