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Masculinity, a key theme in the 1947 domestic play, "A Streetcar Named Desire", by Tennesse Williams, is deeply rooted in the lives of all characters. Set during post-war New Orleans, gender rol...

To integrate e^(2x), integration by substitution can be used.

2x=u, you're left with an intergrand of e^u. 

S: = integral sign

S: e^u dx. In this case we are still integrating the int...

Common exam question: fully expand and simplify (x+3)(x-2)

Student asks: how should I best answer the question? How do I do it step by step?

My answer:
First expand each individual par...

Because the weak acid is in excess, all of the strong base will react to form water and a salt of the acid. Since there is still some of the acid in the reaction mixture at the end point, an acidic buffer...

In short, a radian is an angular measurement, very much like a degree, except one radian is a lot bigger than one degree, and it has some special properties. A radian can often seem like ...