Whakaoti i te 4^x=745

$$4 ^ { x } = 745$$

Whakaoti mō x

$$x = \frac{\log_{2} {(745)}}{2} \approx 4.770548308$$

Ngā Upane e Whakamahi ana i te Tautuhinga o te Taupū Kōaro

Whakamahia ngā ture taupū me ngā taupū kōaro hei whakaoti i te whārite.

$$4^{x}=745$$

Tuhia te tau taupū kōaro o ngā taha e rua o te whārite.

$$\log(4^{x})=\log(745)$$

Ko te taupū kōaro o tētahi tau ka hīkina ki tētahi pū ko te pū whakarea ki te taupū kōaro o taua tau.

$$x\log(4)=\log(745)$$

Whakawehea ngā taha e rua ki te \log(4).

$$x=\frac{\log(745)}{\log(4)}$$

Mā te tikanga tātai huri pūtake \frac{\log(a)}{\log(b)}=\log_{b}\left(a\right).

$$x=\log_{4}\left(745\right)$$

Whakaoti mō x (complex solution)

$$x=\frac{\pi n_{1}i}{\ln(2)}+\frac{\log_{2}\left(745\right)}{2}$$

$$n_{1}\in \mathrm{Z}$$