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Mashutka [201]
3 years ago
14

OK can someone help me on this one...?

Mathematics
1 answer:
aksik [14]3 years ago
8 0

2. multiplication property of equality

3. subtraction property of equality

4. addition property of equality

5. division property of equality

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Which of these situations can be represented with an integer​ that, when combined with the opposite of −5​, makes​ 0?
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Use binomial expansion to solve each exercise. (a) Find the coefficient of xy19 in (3x − 2y) 20.(b) Give a formula for the coeff
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9514 1404 393

Answer:

  (a) -29,884,416

  (b) C(n,(n -k)/2) . . . where C(n,k) = n!/(k!(n-k)!) and k ∈ ℕ

Step-by-step explanation:

(a) The coefficient of the k-th term of the expansion is ...

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The coefficient of the term is -29,884,416.

__

(b) The p-th term of the expansion of (x +1/x)^n is ...

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  k = n -2p

  p = (n -k)/2

Then the coefficient of x^k will be C(n, (n-k)/2), where C(n, x) = n!/(x!(n-x)!).

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