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Math Practice Test For You...2
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A.
ln(1/e)=-1
exponential form:
(e)^-1=1/e
B.
ln(u)=s
exponential form:
e^s=u
C.
log(a,b)=c
exponential form:
a^c=b
Let x=t and y=u
write each expression in terms of t and u
A.
ln(ex)
=ln(e)+ln(x)
=1+ln(x).........if x=t
=1+ln(t)
B.
ln(e^2x sqrt(y))
=ln(e^2)+ln(x )+ln(sqrt(y))
=2+ln(x )+ln(y^(1/2))
=2+ln(x )+(1/2)ln(y).......x=t and y=u
=2+ln(t )+(1/2)ln(u)