elif74 0 Posted November 5, 2004 selam, sis cant be x but, e^lnx = y take ln of both sides lnx * lne = lny (lne= 1) lnx = lny (if this is it) x=y dy/dx = 1 Share this post Link to post Share on other sites

flutterby 0 Posted November 5, 2004 and this is why i got a 4/7 on my math exam. evil calculus. Share this post Link to post Share on other sites

Hasib 17 Posted November 6, 2004 unless i forgot.. it was after all 2000 :D let me dig up my 2nd year calc book :D umm that equation has no answer (w00t) Share this post Link to post Share on other sites

flutterby 0 Posted November 7, 2004 ... and i have a math exam, tomorrow, too. :D thank goodness it's easy stuff... i *think* Share this post Link to post Share on other sites

Musafir 0 Posted January 28, 2005 My question is also dealing with Calculus but the basic part, which I forgot. Ok here's the thing. Its got to with inequality which is in Absolute values,the beginning Capter. Multiplying or didviding both sides of an inequality by a negative number reverses the inequality: if a < b and c < 0, then ac > bc. To see this notice that a < b implies b - a > 0. Hence, (b - a)c < 0, since the product of a positve number and a negative number is negative. So bc - ac < 0, or bc <ac. Can someone plz explain the above statement and tell me what inequality also means. Shukran. Share this post Link to post Share on other sites

elif74 0 Posted January 29, 2005 selam, nobody answered yet? i hope not to late. if it was "=", instead of "<" or ">" it would be equation, but there is no equality thats why its inequality.... let me give you an example: if a=5 and b=6 and c= -3 5<6 i mean a<b but if you multiply them with c 5 * (-3) = -15 6* (-3) = - 18 if you think their absolute value 15 <18 but if they were negative -15>-18 bec. -15 is closer 0 than -18. and second one. again thing about same value. 5<6 add to the both sides -5 5 -5 < 6-5 0 < 1 or 1>0 and then multiply with c 1* (-3) = -3 means its smaller than 0. (b-a) c <0 i hope this makes you clear... Share this post Link to post Share on other sites