Msaada wa haraka hii hesabu!!!

2^x =4x......log
log2 ^x=log4x.
Xlog2=log(2^2)X.
Xlog2=log(2^2)+logX.
Xlog2=2log2+logX
logX=Xlog2-2log2
logX=(X-2)Log2
X=(X-2)2
X=2X-4
4=2X-X
X=4.

Kumbe una ubavu katika mitaa hii...Hongera zako sana :)
 
Kumbe una ubavu katika mitaa hii...Hongera zako sana :)

mbona amekosea? Mathematically logx not= (x-2)log2 b'se x-2 is an xponent. U cant equate logx and (x-2)log2. Labda ingekuwa logx=log2^(x-2). I'll b back later. Ngoja nkwapime wanafunz wangu.
 
hv anayesema chora graph ndio utapata jibu lasivyo hakuna jibu lingine.Mmh nadhani uwezo wake wa hesabu bado ni wakukariri tu ....
Mfano:Unaweza kwenda Dar kutoka Arusha kwa kutumia njia zifuatazo:Nchu kavu(Miguu,baiskel,gari n.k) au anga(Ndege,ungo n.k)
 
Pia tunaweza tukatumia Archemedes principle, acha niwasiliane na mwalim kihashish, nitalejea kumwaga maujuzi.
 
Haiwezi kuwa 0 baba
2[SUP]x[/SUP]=4X , 2[SUP]0[/SUP]=4(0), 2[SUP]0[/SUP]=1 and 4(0)=0 wapi na wapi.

2x=4x
2x-4x=0
2x(1-2)
-2x/-2 =0/-2
x=0/-2
x=0
sory nimetumia mobile ila umeelewa.
 
2^x =4x......log
log2 ^x=log4x.
Xlog2=log(2^2)X.
Xlog2=log(2^2)+logX.
Xlog2=2log2+logX
logX=Xlog2-2log2
logX=(X-2)Log2
X=(X-2)2
X=2X-4
4=2X-X
X=4.
naona nyota nyota tu hata sielewi.by they way taaluma yangu ni sheria.lol
 
  • Thanks
Reactions: Paw
2x=4x
2x-4x=0
2x(1-2)
-2x/-2 =0/-2
x=0/-2
x=0
sory nimetumia mobile ila umeelewa.

Hebu angalia vizuri hilo swali. Au labda hiyo mobile yako kama ni kichina. kushoto ni 2 power x
 
2^x=4x apply log each side log2^x=log4x xlog2=log4+logx xlog2=2log2+logx xlog2-2log2=logx log2(x-2)=logx dividing by log2(x-2) throughout the eqn we obtain 1=logx/log2(x-2) this can also be writen as logxbase2(x-2)=1, into exponential form it will be 2(x-2)^1=x 2(x-2)=x 2x-4=x x=4 ok!
 
2 Reactions
Reply
Back
Top Bottom