#Derivatives to evaluate (need someone to go over my answers, Calculus 1)

43 messages · Page 1 of 1 (latest)

cobalt veldt
velvet flumeBOT
next zephyr
rose grove
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1(a) it should be $4e^t$ ,not $4te^t$

pallid graniteBOT
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Victimizer

cobalt veldt
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when do I ever bring the exponent down? I first thought it was never when it comes to e, but found some examples where they brought the exponent down.

rose grove
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1 (b) when u do derivative of $x^4$
U use $nx^(n-1)$ so $4x^(4-1)=4x^3$

pallid graniteBOT
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Victimizer

rose grove
cobalt veldt
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e^3x will be e^3x?

rose grove
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In case of e^(mx )
It will be me^x

rose grove
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m is the coefficient of x basically

cobalt veldt
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oh ok i get it, in number 1 t is what x would be

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so it stays the same, its not the coefficient

rose grove
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Yes

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If it was 4e^2t
U would say 8e^2t

cobalt veldt
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ok that makes sense

rose grove
cobalt veldt
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when do you use ln?
3^x for example? just add ln to both sides

cobalt veldt
rose grove
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It is supposed to be me^mx

rose grove
rose grove
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Also in 1(b)
Put the "-sinx" in bracs otheriwse it looks like u subtracted sinx

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Same mistake in 1(c)
As 1(a)

rose grove
cobalt veldt
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ok thanks a lot

rose grove
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1 e same mistake

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nx^(n-1)

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I think u need to clear up formulas

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1f is perfect

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Plus

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h is perfect

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(I)same mistake as me^mx

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j perfect

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K same mistake
me^mx

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2a is perfect

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2b has some mistakes

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When u go fo e^y ,y is not x here rather it's a function of x
So e^y will hv a derivative of (e^y )(y')

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C is all good

cobalt veldt