مشاهدة النسخة كاملة : question


Omniya Mahmoud
24-12-2010, 01:44 PM
Hi everybody I'm a secondary student I need help with Math 1 , Especially Algebra I have Questions and I need somebody to help me And to answer my Questions Thank You All
Q1 :-
Prove that :
Log4 15 + 4 Log4 5+ Log4 3**√3

5= _______________________

Log4 75 - Log4 5√3




Please everyone try to help!!!!!!!!! thank u
!

Omniya Mahmoud
24-12-2010, 08:16 PM
thank u !!!!!! but i need someone urgently help me with this question!!!! thank u all

MathPrince
01-01-2011, 02:09 AM
R.H.S. = http://latex.codecogs.com/gif.latex?\frac{log_{4}15+4log_{4}5+log_{4}3\sqrt{ 3}}{log_{4}75-log_{4}5\sqrt{3}}


= http://latex.codecogs.com/gif.latex?\frac{log_{4}(5\times 3)+4log_{4}5+log_{4}3+log_{4}\sqrt{3}}{log_{4}(5^{ 2}\times 3)-log_{4}5+log_{4}\sqrt{3}}



= http://latex.codecogs.com/gif.latex?\frac{log_{4}5+log_{4}3+4log_{4}5+log_{4 }3+\frac{1}{2}log_{4}3}{2log_{4}5+log_{4}3-log_{4}5-\frac{1}{2}log_{4}3}


= http://latex.codecogs.com/gif.latex?\frac{5log_{4}5+\frac{5}{2}log_{4}3}{log _{4}5+\frac{1}{2}log_{4}3}

by taking 5 ac a common factor from the numerator
= 5

Omniya Mahmoud
02-01-2011, 04:54 PM
Oh thank u very much hhhh :D u are now my friend if i want anything u'll help me hhhhhhhh :D thank u very much really !!!!!