Hi - I think I'm integrating incorrectly. I checked my work on an integration calculator and had a completely different answer. Can you please review the following problem and help explain the calculation?
Here's what I have...
Integral: (2x^(5/4) - 7x^8 + 9e^x - 1) dx
Since this is an addition / subtraction problem, I took the integral of each part and came up with:
(2x^(9/4)/(9/4)) - (7x^9)/9 +9e^x - x + C
Am I close? Thanks!!
2006-10-16 12:15:46 · 3 answers · asked by math dodo 2 in Science & Mathematics ➔ Mathematics
That is right, but you can simplify the first part.
2 divided by (9/4) is the same thing as 2 times 4/9
2(4/9) = 8/9
Your answer should be
(8/9)x^(9/4) - (7/9)x^9 + 9e^x - x + C
I just moved the fractions to the front.
2006-10-16 12:28:33 · answer #1 · answered by MsMath 7 · 0⤊ 0⤋
that looks right...except you could just simplify it to...(8/9)x^(9/4) - (7/9)x^9 + 9e^x - x + C
2006-10-16 12:37:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Your answer looks correct.
2006-10-16 12:28:03 · answer #3 · answered by jenh42002 7 · 0⤊ 0⤋