Réitigh left(88-90.875right)^2+left(94-90.875right)^2+left(93-90.875right)^2+left(90-90.875right)^2+{left(91-90.875right)}^2+{left(94-90.875right)}^2+{left(90-90.875right)}^2+{left(87-90.875right)}^2

$${ \left(88-90.875 \right) }^{ 2 } + { \left(94-90.875 \right) }^{ 2 } + { \left(93-90.875 \right) }^{ 2 } + { \left(90-90.875 \right) }^{ 2 } + { \left(91-90.875 \right) }^{ 2 } + { \left(94-90.875 \right) }^{ 2 } + { \left(90-90.875 \right) }^{ 2 } + { \left(87-90.875 \right) }^{ 2 }$$

Luacháil

$$48.875$$

Céimeanna Réitigh

Dealaigh 90.875 ó 88 chun -2.875 a fháil.

$$\left(-2.875\right)^{2}+\left(94-90.875\right)^{2}+\left(93-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Ríomh cumhacht -2.875 de 2 agus faigh 8.265625.

$$8.265625+\left(94-90.875\right)^{2}+\left(93-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Dealaigh 90.875 ó 94 chun 3.125 a fháil.

$$8.265625+3.125^{2}+\left(93-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Ríomh cumhacht 3.125 de 2 agus faigh 9.765625.

$$8.265625+9.765625+\left(93-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Suimigh 8.265625 agus 9.765625 chun 18.03125 a fháil.

$$18.03125+\left(93-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Dealaigh 90.875 ó 93 chun 2.125 a fháil.

$$18.03125+2.125^{2}+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Ríomh cumhacht 2.125 de 2 agus faigh 4.515625.

$$18.03125+4.515625+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Suimigh 18.03125 agus 4.515625 chun 22.546875 a fháil.

$$22.546875+\left(90-90.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Dealaigh 90.875 ó 90 chun -0.875 a fháil.

$$22.546875+\left(-0.875\right)^{2}+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Ríomh cumhacht -0.875 de 2 agus faigh 0.765625.

$$22.546875+0.765625+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Suimigh 22.546875 agus 0.765625 chun 23.3125 a fháil.

$$23.3125+\left(91-90.875\right)^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Dealaigh 90.875 ó 91 chun 0.125 a fháil.

$$23.3125+0.125^{2}+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Ríomh cumhacht 0.125 de 2 agus faigh 0.015625.

$$23.3125+0.015625+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Suimigh 23.3125 agus 0.015625 chun 23.328125 a fháil.

$$23.328125+\left(94-90.875\right)^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Dealaigh 90.875 ó 94 chun 3.125 a fháil.

$$23.328125+3.125^{2}+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Ríomh cumhacht 3.125 de 2 agus faigh 9.765625.

$$23.328125+9.765625+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Suimigh 23.328125 agus 9.765625 chun 33.09375 a fháil.

$$33.09375+\left(90-90.875\right)^{2}+\left(87-90.875\right)^{2}$$

Dealaigh 90.875 ó 90 chun -0.875 a fháil.

$$33.09375+\left(-0.875\right)^{2}+\left(87-90.875\right)^{2}$$

Ríomh cumhacht -0.875 de 2 agus faigh 0.765625.

$$33.09375+0.765625+\left(87-90.875\right)^{2}$$

Suimigh 33.09375 agus 0.765625 chun 33.859375 a fháil.

$$33.859375+\left(87-90.875\right)^{2}$$

Dealaigh 90.875 ó 87 chun -3.875 a fháil.

$$33.859375+\left(-3.875\right)^{2}$$

Ríomh cumhacht -3.875 de 2 agus faigh 15.015625.

$$33.859375+15.015625$$

Suimigh 33.859375 agus 15.015625 chun 48.875 a fháil.

$$48.875$$

Fachtóirigh

$$\frac{17 \cdot 23}{2 ^ {3}} = 48\frac{7}{8} = 48.875$$