OAE Math Flashcards by Spencer Ayres | Brainscape

Q

Conjugate of a+bi

A

a-bi

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Q

Find inverse of function

A

Switch x and y

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Q

Lateral surface area of a cone

A

(pi)(r)(slant height)

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Q

Congruent triangles

A

Same angles and side lengths

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Q

Congruent lines

A

Same length

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Q

Amplitude

A

(max - min) / 2

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Q

Law of Cosines

A

c^2 = a^2 + b^2 - (2ab)cos[c]

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Q

Integral from a to b of f(x)

A

Negative integral from b to a of f(x)

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Q

tan(@)

A

sin(@)/cos(@)

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Q

cot(@)

A

1/tan(@)

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Q

sec(@)

A

1/cos(@)

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Q

csc(@)

A

1/sin(@)

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Q

sin^(2) + cos^(2)

A

1

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Q

sec^(2)

A

1 + tan^(2)

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Q

Ln(xy)

A

Ln(x) + Ln(y)

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Q

Ln(x^y)

A

yLn(x)

Q

Circle formula: Center (h,k) and radius r

A

(x-h)^2 + (y-k)^2 = r^2

Q

Law of Sines

A

a/sin(A) = b/sin(B)

Q

Sin(A-B)

A

Sin(A)xCos(B) - Cos(A)xSin(B)

Q

Harmonic function

A

f(x) = (A)Sin(Bx), A=amplitude,2pi/B=period