If log2=0.3 then find the value of log root 2
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Given:
(i) The value of log 2 = 0.3.
To find:
(i) The value of log (√2).
Solution:
Given, the value of log 2 is 0.3
According to the laws of logarithm, we know that:
log (a^b) = b log a. ...(1)
Now, we need to find the value of:
log (√2).
As √2 = 2^(1/2)
So, log (√2) = log (2^[1/2])
This is equivalent to (1), where,
a = 2 and,
b = 1/2.
So, log (2^[1/2])
= (1/2) log 2
Again, the value of log 2 is equal to 0.3. So,
(1/2) log 2
= (1/2)*(0.3)
= 0.15
Thus, the value of log (√2) is equal to 0.15
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