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Irina-Kira [14]
3 years ago
8

A mathematics journal has accepted 15 articles for publication. However, due to budgetary restraints only 9 articles can be publ

ished this month. How many ways can the journal editor assemble 9 of the 15 articles for publication?
Mathematics
1 answer:
Katena32 [7]3 years ago
4 0
15!/(15-9)!= 32432400

i hate these so much hope it helps! :)
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∫6x^5(x^6-2)\,dx = \frac{1}{2}(x^6-2)^2+C

Step-by-step explanation:

To find:

∫6x^5(x^6-2)\,dx

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Method of substitution:

Let x^6-2=t

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[use (x^n)'=nx^{n-1}]

So,

∫6x^5(x^6-2)\,dx = ∫ t\,dt = \frac{t^2}{2}+C_1 where C_1 is a variable.

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Put t=x^6-2

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Use (a-b)^2=a^2+b^2-2ab

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where C=2+C_1

Without using substitution:

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So, same answer is obtained in both the cases.

7 0
2 years ago
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