Linear Algebra
18 Online
OpenStudy (anonymous):
log abc^0.5+log abc =?
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OpenStudy (anonymous):
options are: 5,9,2,1
OpenStudy (xapproachesinfinity):
let me see if this what you wrote before we begin
\[\log abc^{\frac{1}{2}}+\log abc\]
OpenStudy (xapproachesinfinity):
is that right?
OpenStudy (xapproachesinfinity):
is it (abc)^0.5 or just ab(c^0.5) huge difference
OpenStudy (xapproachesinfinity):
so which is it?
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OpenStudy (xapproachesinfinity):
hello!! you there?
OpenStudy (anonymous):
yes the first one is ryt
OpenStudy (anonymous):
will be
1/2log abc +log abc
OpenStudy (xapproachesinfinity):
so it is (abc)^1/2 yes
OpenStudy (anonymous):
yes
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OpenStudy (xapproachesinfinity):
okay then \(\log (abc)^{frac{1}{2}}+\log abc= \frac{1}{2} \log abc+\log abc\)
\(=\frac{3}{2}\log(abc)\)
OpenStudy (xapproachesinfinity):
that first line where frac12 supposed to be all to 1/2
OpenStudy (xapproachesinfinity):
so we get \(=\log(abc)^{\frac{3}{2}}\)
OpenStudy (anonymous):
yea , next step
OpenStudy (xapproachesinfinity):
that is all what is it you want to achieve?
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OpenStudy (xapproachesinfinity):
a different way of doing that is
\(\log (abc)^{\frac{1}{2}}+\log abc=\log \frac{(abc)^{\frac{1}{2}}}{abc}\)
OpenStudy (anonymous):
but the options of this ques given are
a) 5
b) 9
c) 2
d) 1
which onw wud be the ans?
OpenStudy (xapproachesinfinity):
i meant \(=log[(abc)^0.5 (abc)]\) not division!!
OpenStudy (xapproachesinfinity):
\(=\log[(abc)^{0.5} (abc)]\)
OpenStudy (xapproachesinfinity):
if those are your options then you missing something in the question
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OpenStudy (anonymous):
alright
OpenStudy (xapproachesinfinity):
can you post the picture of your question
OpenStudy (anonymous):
that must be the wrong ques. i pick this ques from mformaths.
OpenStudy (anonymous):
bdw thankew for your help. :)
OpenStudy (xapproachesinfinity):
that question cannot be any of those number
no more simplification is required
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OpenStudy (anonymous):
yep
OpenStudy (xapproachesinfinity):
all you can do is something like this \(=3/2[\log a+\log b+ \log c]\)
which pretty much does not help for anything new
OpenStudy (anonymous):
ok i have another question cud u help me in that?
OpenStudy (xapproachesinfinity):
post is in a different post though
OpenStudy (anonymous):
okz