In the trapezium rule, which ordinates are multiplied by 2?
Salam Academy Original Practice · Proposed mark scheme
SA-9709-P2-IN-0154 marksL2 StandardCalculatorOver or under
Use the trapezium rule with 2 intervals to estimate ∫13lnxdx, giving your answer to 2 decimal places. State whether this is an overestimate or an underestimate.
Salam Academy Original Practice · Proposed mark scheme
Use the trapezium rule with 4 intervals to estimate ∫022xdx, giving your answer to 2 decimal places. State whether this is an overestimate or an underestimate.
Salam Academy Original Practice · Proposed mark scheme
Use the trapezium rule with 2 intervals to estimate ∫021+x3dx, giving your answer to 2 decimal places. State whether this is an overestimate or an underestimate.
Salam Academy Original Practice · Proposed mark scheme
(i) Use the trapezium rule with 2 intervals to estimate ∫01e2xdx, to 3 significant figures. (ii) Find the exact value of the integral. (iii) Find the percentage error in the estimate, to 2 significant figures.
Salam Academy Original Practice · Proposed mark scheme
(a) Use the trapezium rule with 2 strips to find an exact estimate of ∫0πsinxdx. (b) The exact value is 2. Find the percentage error of the estimate, to 1 decimal place.
Salam Academy Original Practice · Proposed mark scheme