Asked by Stefan
Log5 (2x+1)=1
Answers
Answered by
Bosnian
The logarithm of a number is the exponent by which another fixed value, the base, has to be raised to produce that number.
In this case the base is 5.
So you must solve equation:
5^(2 x + 1 ) = 1
Take the logarithm base 5 of both sides
2 x + 1 = 0
Subtract 1 to borh sides
2 x = - 1
x = - 1 / 2
Remark:
Logarithm of 1 = 0 for any base
In this case the base is 5.
So you must solve equation:
5^(2 x + 1 ) = 1
Take the logarithm base 5 of both sides
2 x + 1 = 0
Subtract 1 to borh sides
2 x = - 1
x = - 1 / 2
Remark:
Logarithm of 1 = 0 for any base
Answered by
oobleck
Log5 (2x+1)=1
By definition, 5^Log5 (2x+1) = 2x+1, so now you have
2x+1 = 5
x = 2
By definition, 5^Log5 (2x+1) = 2x+1, so now you have
2x+1 = 5
x = 2
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