math
posted by grant .
which 3 are correct
a) if x= 10^4 then log10 x = 4
b)if x= 2^8 then log 2x = 8
c) log2 2= 4
d) if x= 3 then log10 3=x
e) log 10 2562log 10 16=0
f)log 10 (ab)= log 10 a/log 10 b
g) the gradient of the graph of y= 2e^x at x= 2 is 2e^2
h) the gradient of the graph of y= e^x at x= 2is 2e
What is your thinking on this?
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