Whakaoti i te sum*3*7/4*119/25

$$\sum \times 3 \times \frac { 7 } { 4 } \times \frac { 119 } { 25 }$$

Aromātai

$$\frac{2499Σ}{100}$$

Ngā Upane Otinga

Tuhia te 3\times \frac{7}{4} hei hautanga kotahi.

$$Σ\times \frac{3\times 7}{4}\times \frac{119}{25}$$

Whakareatia te 3 ki te 7, ka 21.

$$Σ\times \frac{21}{4}\times \frac{119}{25}$$

Me whakarea te \frac{21}{4} ki te \frac{119}{25} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$Σ\times \frac{21\times 119}{4\times 25}$$

Mahia ngā whakarea i roto i te hautanga \frac{21\times 119}{4\times 25}.

$$Σ\times \frac{2499}{100}$$

Kimi Pārōnaki e ai ki Σ

$$\frac{2499}{100} = 24\frac{99}{100} = 24.99$$

Ngā Upane e Whakamahi ana i te Tautuhinga o te Pārōnaki

Tuhia te 3\times \frac{7}{4} hei hautanga kotahi.

$$\frac{\mathrm{d}}{\mathrm{d}Σ}(Σ\times \frac{3\times 7}{4}\times \frac{119}{25})$$

Whakareatia te 3 ki te 7, ka 21.

$$\frac{\mathrm{d}}{\mathrm{d}Σ}(Σ\times \frac{21}{4}\times \frac{119}{25})$$

Me whakarea te \frac{21}{4} ki te \frac{119}{25} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{\mathrm{d}}{\mathrm{d}Σ}(Σ\times \frac{21\times 119}{4\times 25})$$

Mahia ngā whakarea i roto i te hautanga \frac{21\times 119}{4\times 25}.

$$\frac{\mathrm{d}}{\mathrm{d}Σ}(Σ\times \frac{2499}{100})$$

Ko te pārōnaki o ax^{n} ko nax^{n-1}.

$$\frac{2499}{100}Σ^{1-1}$$

Tango 1 mai i 1.

$$\frac{2499}{100}Σ^{0}$$

Mō tētahi kupu t mahue te 0, t^{0}=1.

$$\frac{2499}{100}\times 1$$

Mō tētahi kupu t, t\times 1=t me 1t=t.

$$\frac{2499}{100}$$