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secondary 3 | A Maths
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Pls help with both questions
Date Posted: 1 year ago
Views: 246
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done
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clear
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hope it helps
Date Posted:
1 year ago
for lg(x) = -1/2,
x must be positive, but lg(x) need not be positive.
x=10^(-1/2) = 0.316227766
check by substituting this value into original equation, it does satisfy the equation!
so there are actually 2 answers! ...
x= 0.316227766 or 1000
x must be positive, but lg(x) need not be positive.
x=10^(-1/2) = 0.316227766
check by substituting this value into original equation, it does satisfy the equation!
so there are actually 2 answers! ...
x= 0.316227766 or 1000
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