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3 years ago

–3x + 5 = –3x + 10 A. 5/6 B. –5/6 C. no solution D. Idenity

Mathematics

1 answer:

My name is Ann [436]3 years ago

3 0

Answer:

The answer would be C. no solution

Step-by-step explanation:

I hope this helped!

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3 years ago

Prove that an = 4^n + 2(-1)^nis the solution to

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Answer:

See proof below

Step-by-step explanation:

We have to verify that if we substitute $a_n=4^n+2(-1)^n$ in the equation $a_n=3a_{n-1}+4a_{n-2}$ the equality is true.

Let's substitute first in the right hand side:

$3a_{n-1}+4a_{n-2}=3(4^{n-1}+2(-1)^{n-1})+4(4^{n-2}+2(-1)^{n-2})$

Now we use the distributive laws. Also, note that $(-1)^{n-1}=\frac{1}{-1}(-1)^n=(-1)(-1)^{n}$ (this also works when the power is n-2).

$=3(4^{n-1})+6(-1)^{n-1}+4(4^{n-2})+8(-1)^{n-2}$

$=3(4^{n-1})+(-1)(6)(-1)^{n}+4^{n-1}+(-1)^2(8)(-1)^{n}$

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then the sequence solves the recurrence relation.

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A rational number can be written as the ratio of one blank to another and be represented by a repeating or blank decimal. What a

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