WisFaq!

Re: D[(5x^3 6) tan x]

klopt dit?
D(5x³+6). tanx + [(5x³+6).D(tanx)]
= D(5x³) + D(6).tanx + [(5x³ +6).1/cos²x)]
= (15x² + 0).tanx +[(5x³+6).1/cos²x]
=15x²tanx + 1/cos²x.(5x³ + 6)

jeske boutens
4-10-2004

Antwoord

Inderdaad, dit is correct.

LL
4-10-2004