2 years ago

PLS HELP ASAP ILL GIVE BRAINLKEST THANKS

1 answer:

3 0

d ≥ -7 ? (ignore.....................................................................................................................................)

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Given that the series kcoskt kº +2 k=1 converges, suppose that the 3rd partial sum of the series is used to estimate the sum of

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Answer:

Step-by-step explanation:

Given that:

$\sum \limits ^{\infty}_{k=1} \dfrac{kcos (k\pi)}{k^3+2}$

since cos (kπ) = $-1^k$

Then, the series can be expressed as:

$\sum \limits ^{\infty}_{k=1} \dfrac{(-1)^kk)}{k^3+2}$

In the sum of an alternating series, the best bound on the remainder for the approximation is related to its $(n+1)^{th$ term.

∴

$\sum \limits ^{\infty}_{k=1} \dfrac{(-1)^{(3+1)}(3+1))}{(3+1)^3+2}$

$\sum \limits ^{\infty}_{k=1} \dfrac{(-1)^{(4)}(4))}{(4)^3+2}$

$= \dfrac{4}{64+2}$

$=\dfrac{2}{33}$

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A new car is purchased for 25000 dollars. The value of the car depreciates at 8.25% per year. What will the value of the car be

inysia [295]

Answer:

98700

Step-by-step explanation:

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16 + 36 Drag numbers to the lines to create an equivalent expression in factored form

Goshia [24]

Answer:
52
this is most likely the correct answer

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What is the value of four cubed divided by two squared?

Basile [38]

Answer:

Step-by-step explanation:

$\frac{4^3}{2^2}$ Simplify the fraction

$\frac{64}{4}$ Divide

If this answer is correct, please make me Brainliest!

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2 years ago

What are the solutions of the equation x^4-5x^2-36=0? Use factoring to solve

Murljashka [212]

X = -3, 3, 2i, -2i
Hope this helps! :)

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2 years ago