SOLUTION: ln ((square root x) divided by (y square root z)). i got .5lnx-lny+.5lnz, but the last part is supposed to be -.5lnz. what did i do wrong? thanks

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Question 25357: ln ((square root x) divided by (y square root z)). i got .5lnx-lny+.5lnz, but the last part is supposed to be -.5lnz. what did i do wrong? thanks
Found 2 solutions by venugopalramana, longjonsilver:
Answer by venugopalramana(3286)   (Show Source): You can put this solution on YOUR website!
ln ((square root x) divided by (y square root z)).
PUT BRACKETS PROPERLY
LN{SQ.RT(X)/(Y*SQ.RT(Z))}IT MEANS SQ.RT.X IS DIVIDED BY BOTH Y AND SQ.RT.Z.
SO WE GET -O.5 LN Z AND NOT +0.5 LN Z
WHERE AS IF IT HAD BEEN
LN{SQ.RT(X)/(Y)*(SQ.RT(Z)},IT COULD BE TAKEN AS
LN{(SQ.RT(X))*(SQ.RT(Z))/(Y),WHEN YOUR ANSWER IS OK. SO PROPER USE OF BRACKETS IS VERY IMPORTANT.HOPE YOU UNDERSTOOD.
i got .5lnx-lny+.5lnz, but the last part is supposed to be -.5lnz. what did i do wrong? thanks

Answer by longjonsilver(2297)   (Show Source): You can put this solution on YOUR website!

--> note the bracket around the y and z terms! This is where you missed your -ve z term...





jon

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