Exam (elaborations)
pure maths with mechanics and statis
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1 a) Give n tha t f(x ) = x 3 – 4x 2 – 3x + 7, find f '(x ). (2) b) Hence find the values of x for which f(x) is a decreasing function, giving your answer in the form {x : x > a} {x : x < b} where a and b are real numbers to be found. (3) 2 A helicopter flies between 3 locations, A,...
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