Math 1B Mini Exam & Midterm I

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41 Terms

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<p></p>

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disk volume formula

Volume = π r2 Δx

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washer volume formula

Volume = (π R2 - π r2) Δx

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cylindrical shell volume formula

2π r h Δx

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disk method slices

vertical

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washer method slices

vertical

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cylindrical shell method slices

horizontal

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disk method traits

  • solid (not hollow)

  • dx for HORIZONTAL axis of rotation

  • dy for VERTICAL axis of rotation

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washer method traits

  • hollow

  • dx for HORIZONTAL axis of rotation

  • dy for VERTICAL axis of rotation

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cylindrical shell method traits

  • either solid or hollow

  • dy for VERTICAL axis of rotation

  • dx for HORIZONTAL axis of rotation

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probability definition

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probability density function

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probability that x lies in an interval [a, b]

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median value of x

number M such that

<p>number M such that</p>
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mean value of x or the expected value of x

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Comparison Theorem

0 ≤ f (x) ≤ g(x)

<p>0 ≤ f (x) ≤ g(x)</p>
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Comparison Theorem warnings

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1/x converge or diverve?

diverge

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1/x² converge or diverge?

converge

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1/x³ converge or diverge?

converge (check)

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trapezoidal sum formula

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left- and right-hand sum formulas

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Error in Numerical Approximations (trapezoid & midpoint)

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mid point sum formula

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Error Bounds in Numerical Approximations (left and right hand sums)

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work formula

work = mgh

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limit definition of an integral

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∆x

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xk

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p-integral rule

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if p = 1

function diverges

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product rule

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triangle inequality

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circle formula

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add later: common derivatives, similar triangles, improper integrals, & steps for common problems