A geologist models the rate of erosion, RRR, of a coastal rock formation over time ttt (in decades) using the function:
R(t)=49t2−35t2+2.5R(t) = \frac{4}{9}t^2 - \frac{3}{5t^2} + 2.5R(t)=94t2−5t23+2.5
Determine the general expression for the total accumulated erosion, E(t)=∫R(t) dtE(t) = \int R(t) \, dtE(t)=∫R(t)dt, simplifying your coefficients.
Practise Edexcel A Level Maths 11.1 Integrating Standard Functions with exam-style questions for A Level Maths. 81 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.