Asked by Mc78
Use the properties of logarithms to find the exact value of the expression log[16]4*log[5]5ã7
Answers
Answered by
drwls
What is 5ã7 ?
Answered by
Hunter
suppose to be SQRT7
Answered by
Reiny
is that 5√7 or √7 ?
log<sub>16</sub>4 = 1/2
log<sub>5</sub> 5√7 is not exact
was that base supposed to be 7 ?
log<sub>16</sub>4 = 1/2
log<sub>5</sub> 5√7 is not exact
was that base supposed to be 7 ?
Answered by
Mc78
log[16]4*log[5]5ã7 is what the question, I am unsure how to solve exact
Answered by
Mc78
log[16]4*log[5]5sqrt7
Answered by
Reiny
log[16]4*log[5]5sqrt7
= (1/2(*(log[5]5 + log[5]√7)
= (1/2)( 1 + (1/2)log[5] 7)
= 1/2 + (1/4) log<sub>5</sub>7
= (1/2(*(log[5]5 + log[5]√7)
= (1/2)( 1 + (1/2)log[5] 7)
= 1/2 + (1/4) log<sub>5</sub>7