Addition of Two-Digit Numbers by Place Value: A Math Tutorial
15 + 14 -1 When adding numbers, we first need to align them by place value. Here, the ones digits are in the units place, so we...
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John Rhodes
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June 21, 2023
How to Find the Area of a Sector: Formula and Step-by-Step Guide
area of a sector formula A = 1/2r²θ with angle in RADIANS The formula for the area of a sector is: A = (θ/360) * π *...
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John Rhodes
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June 21, 2023
Unlocking the Mystery of Arc Length Formula: A Guide to Calculating Length of Curves in Mathematics and Beyond
arc length formula s = rθ The arc length formula is used to calculate the length of a curve, or arc, on a function. It’s also known...
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John Rhodes
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June 21, 2023
Mastering Special Right Triangles: Understanding the Ratios and Applications of 45-45-90 and 30-60-90 Triangles
special right triangles SEE PICTURE Special right triangles are two types of right triangles that have certain angles and side ratios that remain constant regardless of the...
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John Rhodes
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June 21, 2023
Mastering Pythagorean Identities: The Fundamental Trigonometric Formulas for Simplifying Equations
pythagorean identities sin²θ + cos²θ = 1tan²θ + 1 = sec²θ1 + cot²θ = csc²θ Pythagorean identities are a set of trigonometric formulas in mathematics that relate...
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John Rhodes
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June 21, 2023
Mastering Trigonometric Even-Odd Identities: Simplifying Complex Expressions.
even-odd identities sin(-x) = -sinxcos(-x) = cosxtan(-x) = -tanx Even-odd identities are trigonometric identities that relate the even and odd qualities of trigonometric functions with their respective...
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John Rhodes
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June 21, 2023
Master cofunction identities: Simplify Trigonometric Expressions using Complementary Angles
cofunction identities sin (π/2 – θ) = cosθcos (π/2-θ) = sinθtan (π/2-θ) = cotθcot (π/2-θ) = tanθsec (π/2-θ) = cscθcsc (π/2-θ) = secθ Cofunction identities are a...
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John Rhodes
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June 21, 2023
Unlocking the Secrets of the Unit Circle: How to Find Missing Coordinates Using Trigonometry
missing coordinate on unit circle x² + y² = 1 The unit circle is a circle with a radius of one, centered at the origin of a...