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Exp & Log ~ (1 Viewer)

Juliaan

Member
Joined
Apr 30, 2008
Messages
92
Gender
Male
HSC
2009
Basic Question:

(i) e^2x . (e^x - e^-x)


I did:

= Product Rule
= 2e^2x . (e^x + e^-x) + e^2x . (e^x + e^-x)
= (2x^2x + e^2x) + (e^x + e^-x)
= 3x^2x + ?

Hmm, answers say 3e^3x - e^x

Thanks in adv.
 

Juliaan

Member
Joined
Apr 30, 2008
Messages
92
Gender
Male
HSC
2009
Wait i think i got it,

when i expanded the brackets, i just added the indices ~

EDIT: Yeah i got it, Thanks alot anyways haha.
 
Last edited:

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