Test 3 Flashcards

1
Q

Binomial series form

A

(1+x)^k = Σ(k n)(x)^n

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2
Q

Geometric series sum

A

s = (a / (1 - r)) where a is the first term

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3
Q

What is the preferred form of testing a series if there are natural logs?

A

Integral test

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4
Q

Conditions for integral test

A

Positive, continuous, and decreasing

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5
Q

Limit comparison test

A

If f(x) / g(x) is any number and not zero or infinity means they both either diverge or converge

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6
Q

Maclaurin Series for
1 / (1 - x)

A

Σ x^n

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7
Q

Maclaurin Series for
e^x

A

Σ x^n / n!

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8
Q

Maclaurin Series for
sin(x)

A

Σ (-1)^n * (x^(2n+1) / (2n+1)!)

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9
Q

Maclaurin Series for
cos(x)

A

Σ (-1)^n * (x^2n) / (2n)!

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10
Q

Maclaurin Series for
arctan(x)

A

Σ (-1)^n * x^(2n+1) / (2n+1)

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11
Q

Maclaurin Series for
ln(1 + x)

A

(n = 1) Σ (-1)^(n-1) * x^n / n

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12
Q

Taylor’s inequality

A

M / (n + 1)! * |x - a|^(n+1)
Where M is the greatest value on the nth + 1 derivative (f^(n+1)(x))
You also select an a value that makes x - a the greatest value

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13
Q

Remainder theorem for A.S.T.

A

Rn = s - sn <= bn+1

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14
Q

(k chus n)

A

(k!) / (n! * (k - n)!)

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15
Q

Chu’s formula patter

A

k * (k - 1) * (k - 2) n times

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16
Q

Remainder estimate using integrals

A

Rn <= int from n to infinity f(x) dx