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By putting u=cosx and v’= e^x , use the by parts formula to get:∫e^(x)(cos(x)) dx = cos(x)e^x - ∫-(e^x)sin(x) dx. Use by parts again on the second term to get ∫ =cos(x)e^x + sin(x)e^x - ∫e^(x)(c...

The lives of black Americans changed to a great extent in the period mentioned. In the eyes of the law, their lives saw many positive changes. At the beginning of the period, the laws known as 'Jim Crow' ...

First, recall how to construct a proof by simple induction in this manner: (1) Assume statement true for n=k, (2) Prove true for n=k+1, (3) Show true for n=1.(1) => ∑(from r=1 to k) r(2r−1)(3r−1)= (k/6...

Check to see if anything can be removed from withing the integral and taken out the front. In this case, 7/4 can be taken out the front (as it is not dependent on x), leaving only the term e^(x/2) to be i...

Puntos que mencionar:-El pueblo indígeno en países como Bolivia (Aymara) y Chile (Mapuche).-España acoge a muchos inmigrantes, por eso su población se Vuelve en muy multicultural. Por ejemplo, muchos vien...