Brian McLogan
Solving a proportion using inverse operations
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Brian McLogan
Solve a proportion by using the cross product and parenthesis ex 20, (b+13)/2 = –5b/3
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Brian McLogan
Learning to solve a proportion
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Brian McLogan
Finding the missing value using similarity in triangles
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides...
msvgo
Finding and Checking Equivalent Fractions
This nugget shows how to find and check for equivalent fractions.
Curated OER
How Do You Solve a Word Problem That Compares Two Complex Fractions?
Fractions, money, and a word problem? Write out an equation that has a fraction as the numerator of a fraction. Huh? Confusing? Don't give up! Watch the video as the instructor illustrates and explains how to solve this seemingly...
Khan Academy
Khan Academy: Linear Algebra: Relationship Between Cross Product and Angle Sin
Video proving that the magnitude of the cross product of two vectors is equal to the product of their magnitudes and the sine of the angle between them. [18:09]
Khan Academy
Khan Academy: Linear Algebra: Vector Triple Product Expansion (Very Optional)
Video deriving the triple product expansion by expanding the cross product of 3 vectors and then simplifying it to the difference of dot products. [14:25]
Khan Academy
Khan Academy: Linear Algebra: Cross Product Introduction
Video explains the vector cross product and gives examples of finding it. Also discusses the usefulness and limitations of vector cross products and the differences from the dot product. [15:47]
Khan Academy
Khan Academy: Linear Algebra: Dot and Cross Product Comparison/intuition
Video first reviews how to find the angle between two vectors, as well as restating the relationship between the cross product and the sine of that angle. Then gives an intuition of what the dot product and the cross product represent....
Khan Academy
Khan Academy: Linear Algebra: Dot and Cross Product Comparison/intuition
Video gives an intuition of what dot product and cross product represent. Also gives a comparison between cross product and dot product of vectors and how they are related. Shows which angles maximize the cross product and dot product....
Khan Academy
Khan Academy: Linear Algebra: Relationship Between Cross Product and Angle Sin
Video showing proof of the relationship between cross product and sin. [18:09]
Khan Academy
Khan Academy: Vector Triple Product Expansion (Very Optional)
Video deriving the triple product expansion by expanding the cross product of 3 vectors and then simplifying it to the difference of dot products.
Khan Academy
Khan Academy: Linear Algebra: Cross Product Introduction
Video explains the vector cross product and gives examples of finding it. Also discusses the usefulness and limitations of vector cross products and its differences from the dot product. [15:47]
Khan Academy
Khan Academy: Vector Dot and Cross Products: Cross Product Introduction
This video ha an introduction to the cross productand gives examples of finding it.
Khan Academy
Khan Academy: Linear Algebra: Dot and Cross Product Comparison/intuition
Video gives an intuition of what dot product and cross product represent. Also gives a comparison between cross product and dot product of vectors and how they are related. Shows which angles maximize the cross product and dot product....
Khan Academy
Khan Academy: Electricity and Magnetism: Dot vs. Cross Product
This video will help with your understanding of the differences between dot and cross products. [10:48]
Khan Academy
Khan Academy: Electricity and Magnetism: Cross Product 2
Video lecture provides a little more intuition on the cross product. [10:53]
Khan Academy
Khan Academy: Electricity and Magnetism: Cross Product and Torque
A Khan Academy video focused on the cross product and the direction of torque. [10:01]
Khan Academy
Khan Academy: Electricity and Magnetism: Cross Product 1
A video lecture that introduces how to do the cross product. Understand how crossing two vectos produces a third vector. [10:03]
Sophia Learning
Sophia: Introduction to Torque
A video lesson which gives some examples of torque force. [4:45]
Khan Academy
Khan Academy: Calculating Dot and Cross Products With Unit Vector Notation
Calculating the dot and cross products when vectors are presented in their x, y, and z (or i, j, and k) components. [9:46]
Khan Academy
Khan Academy: Dot vs. Cross Product
Sal Khan helps you understand the differences between the dot and cross products.[10:45]