Whakaoti i te 42x^2*3x^-4

$$42 x ^ { 2 } \times 3 x ^ { - 4 }$$

Aromātai

$$\frac{126}{x^{2}}$$

Ngā Upane Otinga

Hei whakarea i ngā pū o te pūtake kotahi, me tāpiri ō rātou taupū. Tāpiria te 2 me te -4 kia riro ai te -2.

$$42x^{-2}\times 3$$

Whakareatia te 42 ki te 3, ka 126.

$$126x^{-2}$$

Kimi Pārōnaki e ai ki x

$$-\frac{252}{x^{3}}$$

Ngā Upane e Whakamahi ana i te Tautuhinga o te Pārōnaki

Hei whakarea i ngā pū o te pūtake kotahi, me tāpiri ō rātou taupū. Tāpiria te 2 me te -4 kia riro ai te -2.

$$\frac{\mathrm{d}}{\mathrm{d}x}(42x^{-2}\times 3)$$

Whakareatia te 42 ki te 3, ka 126.

$$\frac{\mathrm{d}}{\mathrm{d}x}(126x^{-2})$$

Ko te pārōnaki o ax^{n} ko nax^{n-1}.

$$-2\times 126x^{-2-1}$$

Whakareatia -2 ki te 126.

$$-252x^{-2-1}$$

Tango 1 mai i -2.

$$-252x^{-3}$$