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Old 12-09-2004, 12:16 PM   #1
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A few calc problems....

Im going over my review for my final and i have a few problems with a couple problems. If you could give any help, it would be appriciated.

1. Explain how both of these graphs can be throught as "correct" for Maryland 5% sales tax?
(graphs attached)

2. Find the derivatives
a) d/dw ((8w-1)^4)
b) d/dt (2^sint)
c) d/dx ((e^4x)(x^2-1))

3. Find Indefinite integrals
a) 5/q dq
b) (w^4 - 12w^3 + 6w^2 - 10) dw
c) (t cos( t^2 + 4) dt

Thanks!
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Old 12-09-2004, 10:44 PM   #2
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3. Find Indefinite integrals
a) 5/q dq
b) (w^4 - 12w^3 + 6w^2 - 10) dw
c) (t cos( t^2 + 4) dt

a) 5ln(q) + C
b) (1/5)w^5 - 3w^4 + 2w^3 - 10w
c) i think you entered this problem in wrong.. too many ( and not enough ).

id do the other ones too, but ive been doing physics: electromagnetics and optics studying all day long... like for about 10 hours. seriously.
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Old 12-10-2004, 11:17 PM   #3
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Quote:
Originally Posted by BruThru2002

2. Find the derivatives
a) d/dw ((8w-1)^4)
32(8w-1)^3
c) d/dx ((e^4x)(x^2-1))
2xe^(4x)+4x^2e^(4x)-4e^(4x)
I think those are right.
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Old 12-11-2004, 12:06 AM   #4
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When did they put letters in math? srry dude, wish I could help, but whats it for?
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