Issolvi (12-4/5)^-2+sqrt{25/16}-2^-1=

$$( 12 - \frac { 4 } { 5 } ) ^ { - 2 } + \sqrt { \frac { 25 } { 16 } } - 2 ^ { - 1 } =$$

Evalwa

$$\frac{2377}{3136}\approx 0.757971939$$

Passi tas-Soluzzjonijiet

Naqqas \frac{4}{5} minn 12 biex tikseb \frac{56}{5}.

$$\left(\frac{56}{5}\right)^{-2}+\sqrt{\frac{25}{16}}-2^{-1}$$

Ikkalkula \frac{56}{5} bil-power ta' -2 u tikseb \frac{25}{3136}.

$$\frac{25}{3136}+\sqrt{\frac{25}{16}}-2^{-1}$$

Erġa' ikteb id-diviżjoni tal-għerq kwadrat \frac{25}{16} bħala d-diviżjoni tal-għeruq kwadrati \frac{\sqrt{25}}{\sqrt{16}}. Ħu r-radiċi kwadrata tan-numeratur u d-denominatur.

$$\frac{25}{3136}+\frac{5}{4}-2^{-1}$$

Żid \frac{25}{3136} u \frac{5}{4} biex tikseb \frac{3945}{3136}.

$$\frac{3945}{3136}-2^{-1}$$

Ikkalkula 2 bil-power ta' -1 u tikseb \frac{1}{2}.

$$\frac{3945}{3136}-\frac{1}{2}$$

Naqqas \frac{1}{2} minn \frac{3945}{3136} biex tikseb \frac{2377}{3136}.

$$\frac{2377}{3136}$$

Fattur

$$\frac{2377}{2 ^ {6} \cdot 7 ^ {2}} = 0.7579719387755102$$