  Centrale des maths - centraledesmaths.uregina.ca  Dilemmes & doutes    « D & D »    Sujet: natural logarithms   nouvelle recherche

8 articles trouvés pour ce sujet.    Page1/1            Differentiate ln[x(2x-4)^1/2] 2014-06-28 Igwe pose la question :If y=In[x(2x-4)^1/2],find dy/dx at x=3Penny Nom lui répond.     ln(12 x) = 6 2011-03-03 Carolyn pose la question :solve the equation ln12x = 6 Thank you CarolynPenny Nom lui répond.     Solve e^x + e^(x+1) = 250 2008-08-25 Laura pose la question :"solve this equation correct to three decimals" e^x + e^x+1= 250Penny Nom lui répond.     Natural logarithms 2003-07-22 Amanda pose la question :I'm going into my senior year of high school. I will be taking AP calculus, and my teacher gave us some homework over the summer. However, there are two things that I do not understand how to do. The first is, she wants us to be able to generate a unit circle by hand using 30, 60 and 90 degree triangles. I have used the unit circle in trigonometry, however I was never taught how to draw it. Secondly, I need to know how to do natural logarithms without a calculator. I was not taught how to do this, and the worksheet I was given only showed me how to complete them using a calculator.Claude Tardif lui répond.     Radioactive decay 2000-05-18 Catherine Sullivan pose la question :Please help me with the following: The radioactive isotope carbon-14 is present in small quantities in all life forms, and it is constantly replenished until the organism dies, after which it decays to carbon-12 at a rate proportional to the amount of C-14 present, with a half life of 5730 years. Suppose C(t) is the amount of C-14 at time t. Find the value of the constant k in the differential equation: C'=-kC In 1988 3 teams of scientists found that the Shroud of Turin, which was reputed to be the burial cloth of Jesus, contained 91% of the amount of C-14 contained in freshly made cloth of the same material. How old is the Shroud according to the data? Harley Weston lui répond.     Two calculus problems 2000-05-01 Kaushal Shah pose la question :How Do WE Integrate the following Functions, Integral xtanx dx How was natural base "e" discovered and why e=2.7....... Claude Tardif lui répond.     Derivatives with logs 1999-10-26 Kate pose la question :What is the derivative of 5 to the 5x-2 at x equals 0.8? Harley Weston lui répond.     John Napier and e 1999-02-06 Shimin pose la question :I would like to ask about the exact definition of e, its history (like how John Napier came about discovering it) and its applications in problems and real life situations. Thank you!Chris Fisher lui répond.      Page1/1    Centrale des maths reçoit une aide financière de l’Université de Regina et de The Pacific Institute for the Mathematical Sciences.    Qui sommes-nous :: carte du site :: our english site