Recent content by basher87

i solved the equation in terms of the hyperbolic function. y = sqrt(2sinh x), the derivative calculator gave te same output. if i solve it in terms of the exponential equation i get the equivalent but the calculator doesnt. Is it possible that it is a syntax error

thankyou sammy no it comes up with this. i have checked the hyperbolic functions, in fact i just substituted 2sinhx for exp(x) - exp(-x) and got the same answer (exp(-x)*(exp(2.5x) + exp(.5x)))/2(sqrt(exp(2x) - 1) is what the calculator gives

Homework Statement y = sqrt(exp(x) - exp(-x)) Homework Equations dy/dx = dy/du.du/dx - chain rule d/dx(exp(x)) = exp(x) - derivative of exp(x) The Attempt at a Solution y = sqrt(exp(x) - exp(-x)) y' = (1/2).(1/sqrt(exp(x) - exp(-x))).[exp(x) - (exp(-x).-1)] y' = [exp(x) +...