Module 3 · Advanced Algebra
Chapter 11: Exponents
Advanced Math
4 topics
What this chapter covers
The 4 topics below make up Exponents on the Digital SAT. Click any topic to open its notes, examples and practice test.
Study material & tests
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Formula Reference Sheet
This chapter
Laws of exponents
| Product | xᵃ · xᵇ = xᵃ⁺ᵇ |
|---|---|
| Quotient | xᵃ / xᵇ = xᵃ⁻ᵇ |
| Power of a power | (xᵃ)ᵇ = xᵃᵇ |
| Zero power | x⁰ = 1 (x ≠ 0) |
Negative, rational, scientific
| Negative | x⁻ⁿ = 1/xⁿ |
|---|---|
| Rational | x^(m/n) = ⁿ√(xᵐ) |
| Scientific notation | a × 10ⁿ, with 1 ≤ a < 10 |
Digital SAT reference
Area & Circumference
| Circle area | A = πr² |
|---|---|
| Circle circumference | C = 2πr |
| Rectangle | A = ℓw |
| Triangle | A = ½ b h |
Volume
| Rectangular box | V = ℓwh |
|---|---|
| Cylinder | V = πr²h |
| Sphere | V = 4⁄3 πr³ |
| Cone | V = 1⁄3 πr²h |
| Pyramid | V = 1⁄3 ℓwh |
Right triangles
| Pythagorean theorem | a² + b² = c² |
|---|---|
| 30°–60°–90° | sides x : x√3 : 2x |
| 45°–45°–90° | sides s : s : s√2 |
Constants
| Degrees in a circle | 360° |
|---|---|
| Radians in a circle | 2π |
| Angles of a triangle | sum = 180° |
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