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Integrate by parts, identifying that dv/dx = 1, u = ln(x) and therefore v = x and du/dx = 1/x. Sub into the parts equation to find the answer to be xln(x) - x + c.

Ethane is a symmetric molecule, therefore both groups of hydrogens occur in the same region and not in two different regions (for example chloroethane would have two different regions). Using the n+1 rule...

The problem of evil questions how an all-knowing, all-loving and all-powerful God is consistent with the existence of evil in the world. Iraneus’ theodicy is a response to the problem of evil, and his arg...

The French subjunctive is important for the written language, but is rarely heard now in spoken French. You should be able to recognise and form it when doing written translations, as the French still pla...

A B-cell with a specific antigen receptor will bind to a complementary antigen, when exposed to that antigen in the body. This specific complementary binding leads to that B-cell becoming activated. An ac...