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Kimi Pārōnaki e ai ki r
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

\frac{3^{1}r^{3}}{2^{1}r^{1}}
Whakamahia ngā ture taupū hei whakarūnā i te kīanga.
\frac{3^{1}r^{3-1}}{2^{1}}
Hei whakawehe i ngā pū o te pūtake kotahi, tangohia te taupū o te tauraro mai i te taupū o te taurunga.
\frac{3^{1}r^{2}}{2^{1}}
Tango 1 mai i 3.
\frac{3}{2}r^{2}
Whakawehe 3 ki te 2.
\frac{\mathrm{d}}{\mathrm{d}r}(\frac{3}{2}r^{3-1})
Hei whakawehe i ngā pū o te pūtake kotahi, tangohia te taupū o te tauraro mai i te taupū o te taurunga.
\frac{\mathrm{d}}{\mathrm{d}r}(\frac{3}{2}r^{2})
Mahia ngā tātaitanga.
2\times \frac{3}{2}r^{2-1}
Ko te pārōnaki o tētahi pūrau ko te tapeke o ngā pārōnaki o ōna kīanga tau. Ko te pārōnaki o tētahi kīanga tau pūmau ko 0. Ko te pārōnaki o te ax^{n} ko te nax^{n-1}.
3r^{1}
Mahia ngā tātaitanga.
3r
Mō tētahi kupu t, t^{1}=t.