Whakaoti i te ∫ (from 3 to 50) of (x+8)x

$$\int _ { 3 } ^ { 50 } ( x + 8 ) x$$

Aromātai

$$\frac{154865}{3}\approx 51621.666666667$$

Ngā Upane Otinga

Whakamahia te āhuatanga tohatoha hei whakarea te x+8 ki te x.

$$\int _{3}^{50}x^{2}+8x\mathrm{d}x$$

Aromātaitia te tau tōpū tautuhi-kore i te tuatahi.

$$\int x^{2}+8x\mathrm{d}x$$

Kōmitimititia te kīanga tapeke mā te kīanga.

$$\int x^{2}\mathrm{d}x+\int 8x\mathrm{d}x$$

Whakatauwehea te pūmau i ēnei kīanga katoa.

$$\int x^{2}\mathrm{d}x+8\int x\mathrm{d}x$$

Nā te mea \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} mō te k\neq -1, me whakakapi \int x^{2}\mathrm{d}x ki te \frac{x^{3}}{3}.

$$\frac{x^{3}}{3}+8\int x\mathrm{d}x$$

Nā te mea \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} mō te k\neq -1, me whakakapi \int x\mathrm{d}x ki te \frac{x^{2}}{2}. Whakareatia 8 ki te \frac{x^{2}}{2}.

$$\frac{x^{3}}{3}+4x^{2}$$

Ko te tau tōpū tautuhi ko te pārōnaki kōaro o te kīanga i aromātaitia i te tepe tōrunga o te pāwhaitua, tangohia te pārōnaki kōaro i aromātaitia i te tepe tōraro o te pāwhaitua.

$$\frac{50^{3}}{3}+4\times 50^{2}-\left(\frac{3^{3}}{3}+4\times 3^{2}\right)$$

Whakarūnātia.

$$\frac{154865}{3}$$