Tīpoka ki ngā ihirangi matua
Kimi Pārōnaki e ai ki x
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Aromātai
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Tohaina

\frac{\mathrm{d}}{\mathrm{d}x}(xe)
Ka whakawehea he tau ki te tahi, hua ai ko ia anō.
ex^{1-1}
Ko te pārōnaki o ax^{n} ko nax^{n-1}.
ex^{0}
Tango 1 mai i 1.
e\times 1
Mō tētahi kupu t mahue te 0, t^{0}=1.
e
Mō tētahi kupu t, t\times 1=t me 1t=t.
xe
Ka whakawehea he tau ki te tahi, hua ai ko ia anō.