⁦Areas, volumes and arc lengths by integration⁩

⁦Use the⁩ التكامل المحدد ⁦to find the area under a curve and between two curves, a volume of revolution, an arc length and a polar area⁩.

لم يُترجَم هذا المختبر إلى هذه اللغة بعد.

الدليل

⁦The area under y = f(x) from a to b is the definite integral of f(x)dx between a and b⁩: ⁦find the antiderivative at b and at a and subtract⁩. ⁦Between two curves always integrate⁩ "⁦top minus bottom⁩".

⁦Turn the region round the x-axis and the volume is V = π∫(f(x))٢dx⁩: ⁦square the function and keep the π⁩. ⁦The arc length is L = ∫√(١ + (f′(x))٢)dx⁩.

⁦In polar coordinates the area swept out by the radius r is A = ١٢∫r٢dθ⁩. ⁦Keep the half and the square⁩.