pls solve dese ... 
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Experienced One
badrobot14
first1:
u kno how ln(A*B) = ln(A) + ln(B)
take ln on both sides and then use that rule..
ln(x) + ln(e^-x) = ln(2.46) now e and ln cancel out to leave:
ln(x) -x = ln(2.46)
u kno how ln(A*B) = ln(A) + ln(B)
take ln on both sides and then use that rule..
ln(x) + ln(e^-x) = ln(2.46) now e and ln cancel out to leave:
ln(x) -x = ln(2.46)
Experienced One
and ln(2.46) = 0.9.... YAAAYYYYYY answer agayaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
badrobot14
exactly.. makes sense..? or no..?
should I do the 2nd one..?
should I do the 2nd one..?
Experienced One
now part c, please xD
badrobot14
take ln both sides..
use the rule: ln(Something^x) = x*ln(Something)
so 2ln(xe^x) = ln(30) + ln(e^-x)
take 2 on LHS:
ln(x) + ln(e^x) = ln(30)/2 -x/2
ln(x) + x = ln(30)/2 -x/2
simplify it urself..
use the rule: ln(Something^x) = x*ln(Something)
so 2ln(xe^x) = ln(30) + ln(e^-x)
take 2 on LHS:
ln(x) + ln(e^x) = ln(30)/2 -x/2
ln(x) + x = ln(30)/2 -x/2
simplify it urself..
Experienced One
part (b) makes perfect sense now ...
Experienced One
i got 1.7 but im getting -0.5... its not -0.5 it's -1.5.. how? :s
badrobot14
coz u silly person (just like me) whn u take +x on RHS it becums -x and -x-0.5x = -1.5x!!!!
Experienced One
ans agaya.... i GOT THE ANSWER =D EeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeE xD
THANX
THANX
badrobot14
getting answer is no big deal... did it get into ur head..??