Derivative of y = cos(a^3 + x^3) - x^3) • Physics Forums
Jul 24, 2008 · The discussion revolves around finding the derivative of the function y = cos (a^3 + x^3), focusing on the application of the chain rule and power rule in calculus. Exploratory, Conceptual …
Calculating the nth Derivative of Cos (X) • Physics Forums
Jan 5, 2026 · The nth derivative of cos (X) follows a cyclical pattern based on the remainder when n is divided by 4. Specifically, the derivatives are as follows: for n mod 4 equals 0, the nth derivative is …
What is the derivative of the absolute value of cos (x)?
Oct 22, 2005 · The signum function cannot be use in this case as |\cos (x)| is not differentiable at the values of x for which \cos (x)=0 as the lefthand and righthand derivative are not equal there (by …
Why derivative of sin x is cos x, only if x is in radians?
Apr 14, 2013 · If the nice derivative rule holds for radians, it can't hold for an angle measure that differs from radians by a factor. If f (y)=siny, where y is in degrees, then f (y)=sin (yπ/180), where y is in …
LaGrange Remainder Infinite Series • Physics Forums
Mar 28, 2009 · Homework Statement Let f be a function whose seventh derivative is f7 (x) = 10,000cos x. If x = 1 is in the interval of convergence of the power series...
How to do integral for Cos(x^2)dx? - Physics Forums
Oct 22, 2006 · And if you mean the general anti-derivative of cos (x 2), it is not an "elementary" function. That is, it cannot be written in terms of functions you normally learn (polynomials, rational functions, …
Central-Difference Formulas If the function f (x can be evaluated at values that lie to the left and right of x, then ) the best two-point formula will involve abscissas that are chosen symmetrically on both …
Sketch the wave, showing both x < 0 and x > 0. - Physics Forums
Mar 22, 2015 · The problem involves analyzing a wave function defined piecewise for regions x < 0 and x > 0, specifically focusing on continuity conditions at the boundary x = 0. The wave function for x < 0 …
Proving One Real Root for 2x - 1 - sin x = 0 - Physics Forums
May 26, 2005 · Some participants assert that the function f (x) = 2x - 1 - sin x is constantly increasing, leading to the conclusion that it has exactly one root between -π and π. Others question the …
Solution for y'' + y = sin (x) using method of undetermined ...
Feb 19, 2012 · The discussion centers around solving the differential equation y'' + y = sin (x) using the method of undetermined coefficients. Participants are exploring the challenges associated with …