Calculus Questions

calculus questions
Does anyone know how to do these calculus questions?

Graph the solution set of x^2 +8x +12 (greater or equal to) 0.

At which values of x is f(x) = (x-4)/(x-2)(x+1) discontinuous?

Differentiate: y = (1+cos x)/(1-cos x).

Find an equation of the tangent line to the graph of x^2 + 3y^2 = 4 at the point (1,1).

Answering any of the above would be appreciated.

umm i forget alot of things but plzzzz answer these question….=Dtanx

http://answers.yahoo.com/question/index?qid=20090526195119AAEs6nE&r=w

AP / AB Calculus Test – Sample Questions 15 & 16

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