The expression is log 0.3 = y-1 and log 200= x+2
What is Logarithm?
The power (or exponent) to which one base number must be raised — multiplied by itself — to produce another.
Given:
log 2= x
log 3 =y
log 7 =z
a) log 0.3
= log 3/10
= log 3 -log 10
= y -1 [log 10=1]
b) log 200
= log 2*100
= log 2 + log 100
= x+ 2 [log 100= 2]
Hence, log 0.3 = y-1 and log 200= x+2
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