Mathematics
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OpenStudy (anonymous):
A logarithmic equation. I got it however , but i wish to share it with you all @mathslover :)
Anyone could try to solve this problem
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OpenStudy (anonymous):
\[\huge x ^{1+logx} = 10x\]
OpenStudy (anonymous):
@mathslover
OpenStudy (anonymous):
Anyone may solve this if they want . I got it
OpenStudy (anonymous):
I posted this this because some of them are doing logarithms and i am doing it too
OpenStudy (anonymous):
Its a tricky one. somewhat
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OpenStudy (anonymous):
i thought this was for mathsolver :P
OpenStudy (anonymous):
Anyone here i specially tagged him because he is doing log
OpenStudy (anonymous):
ok ill give a direct answer :P
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
message me
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OpenStudy (anonymous):
It is not so easy as it looks
mathslover (mathslover):
Its easy...
mathslover (mathslover):
@No.name - I think, the first step will be to take log both sides.
OpenStudy (anonymous):
yes
mathslover (mathslover):
Is the answer 0 ?
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OpenStudy (anonymous):
zero dnt count :)
mathslover (mathslover):
O.O yeah.. I meant to say 1
mathslover (mathslover):
Sorry, i calculated log x = 0
So, x = 1
OpenStudy (anonymous):
haha no lol
if x=1
then
1=10 O.o
mathslover (mathslover):
o.O leave it
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mathslover (mathslover):
hmm, lol, is it 10
OpenStudy (anonymous):
i have solution but its irrational xD
mathslover (mathslover):
Hmm... I am getting 10 @No.name
OpenStudy (anonymous):
cool it work :O
mathslover (mathslover):
(1 + log x) (logx ) = log (10x)
log x + (log x)^2 = log x + 1
(log x)^2 = 1
log x = +/- 1
log x can not be -1...
So, log x = 1
thus, x = 10
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OpenStudy (anonymous):
why its work mmm
OpenStudy (anonymous):
there are 2 answers
mathslover (mathslover):
One of them is 10?
OpenStudy (anonymous):
that's why its tricky
OpenStudy (anonymous):
yes one is 10
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mathslover (mathslover):
hmm ... we might want to take the conditions here?
OpenStudy (anonymous):
nope its very straightforward
mathslover (mathslover):
Oh...
ganeshie8 (ganeshie8):
\(\large x^{\log_{10} 10 + \log_{10} x} = 10x\)
\(\large x^{\log_{10} 10x} = x^{\log_{x} 10x}\)
\(\large \log_{10} 10x = \log_{x} 10x\)
\(\implies x = 10, ~0.1\)
OpenStudy (anonymous):
@ganeshie8 got it !
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OpenStudy (anonymous):
One more question i have in log
mathslover (mathslover):
o.O yeah, I MUST not have avoided this : log (x ) = -1 and log(x) = 1
log(x) = -1
when ... x = 10^{-1} = 1/10
mathslover (mathslover):
OH.. :( I was almost there... but anyways, @ganeshie8 got it... great work
and nice quest. @No.name :-)
mathslover (mathslover):
I went wrong at this pt. : "log x can not be -1..."
it can be -1 :(
OpenStudy (anonymous):
yes
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OpenStudy (anonymous):
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