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Exam (elaborations)

Math Placement Test Equations Questions and Answers

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Math Placement Test Equations Questions and Answers

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Institution
College placement
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College placement

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Uploaded on
December 17, 2025
Number of pages
2
Written in
2025/2026
Type
Exam (elaborations)
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Questions & answers

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Math Placement Test Equations
Questions and Answers


d=√(x₂-x₁)²+(y₂-y₁)² - ANS-Distance Formula

ax²+bx+c=0 - ANS-Quadratic Equation

x=-b±√b²-4ac/2a - ANS-Quadratic Formula

b²-4ac=0 has 1 real solution b²-4ac>0 has 2 - ANS-Discriminant

∆f(x)/∆x - ANS-Avg Rate of Change for a Function

0 - ANS-lne =

xlogx=xyx - ANS-Inverse Function

360 - ANS-2π

x/y=360/2π - ANS-Angle Measure

y/r - ANS-sinθ (Def of Circular Function)

x/r - ANS-cosθ (Def of Circular Function)

y/x - ANS-tanθ (Def of Circular Function)

period 2π - ANS-What is the period of f(x)=sin(x)

period 2π - ANS-What is the period of f(x)=cos(x)

π - ANS-What is the period of f(x)=tan(x)

sin(2u)=2sin(u)cos(u) - ANS-Double Angle Formulas sin(2u)

cos²(u)-sin(u)=1-2sin²(u)=2cos²(u)-1 - ANS-Double Angle Formulas cos(2u)

sinA/a = sinB/b = sinC/c - ANS-Law of Sines

c²=a²+b²-2abcosC - ANS-Law of Cosines

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