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Being a doctor is a difficult job and requires more skills than just being good at biology. Medical schools are looking to see if you have these skills and that you understand what you're getting yourself...

Differentiate y to get: dy/dx = 7-3x^2 , dy/dx = 0 , therefore x=(+/-)sqrt(7/3) d^2y/dx^2 = 6x , substitute x values in to y=7x-x^3 and d^2y/dx^2 to find coordinates and the type of the stationary point.<...

(x+3)(x-7)

= (xx) + (x-7) + (x3) + (3-7)

= x^2 - 7x + 3x - 21

= x^2 - 4x - 21

Key here is to ensure you multiply each term in one bracket by both in the other...

The first lexical device Burns explores is repetition. This is a key method in rhetoric because it establishes importance, and ensures the reader pays attention to the word repeated. The word "red&qu...

To form the imperfect active subjunctive, you take the perfect active infinitive of a verb and you add endings that are (almost) identical to the usual present active indicative verbs. For example, the 3r...