80. If x > 1, then the least value of 2 log x base 10 - log 0.01 base x is
1)2
2)4
3) 6
4) 8
Answers
Answered by
7
Now it seems as twice the sum of a number and its reciprocal.
It is always true that, the minimum value of the sum of a positive real number and its reciprocal is 2.
The equality holds if here.
So, is it possible that
Okay, it's possible. So,
Hence the answer is (2) 4.
Anonymous:
Nice :)
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