This 9-minute video lesson shows how to calculate a 4x4 determinant by putting in in upper triangular form first.
This 19-minute video lesson finds an orthonormal basis for a subspace using the Gram-Schmidt Process.
This 8-minute video lesson looks at the determinant of an upper triangular matrix.
This 9-minute video lesson provides definitions of the vector dot product and vector length.
This 19-minute video lesson proves the triangle inequality for vectors in Rn.
This video shows that if V is a subspace of Rn, then dim(V) + dim(V's orthogonal complement) = n
This 19-minute video lesson shows how to define the determinant for nxn matrices. And it provides an exampled of a 4x4 determinant.
This 14-minute video lesson provides an Introduction to linear transformations.
Showing that matrix products are associative. Created by Sal Khan.
Looks at rural and urban demographics in relation from conflict, symbolic interactionist and functionalist perspectives.
One of the things that we know is that as you go up the social ladder, you often have better access to quality education, healthcare, and other services, such as housing or good nutrition.
When a norm is violated, it's referred to as deviance. And though the word, deviance, seems negative, it's not. It simply means that an individual's behaving differently from what society feels is normal behavior.
William Phillips observed a correlation between unemployment and inflation. Generally, high inflation is associated with low unemployment, and vice versa. This relationship makes sense, as high employment gives workers more leverage, increasing wages and demand for goods and services. However, there are exceptions, such as stagflation in the 1970s and low inflation with low unemployment in the late 1990s. Created by Sal Khan.
This 15-minute video lesson gives an example involving the preimage of a set under a transformation. It also gives a definition of kernel of a transformation.
Examples finding probabilities from probability distributions for continuous random variables.
Proof: Any subspace basis has same number of elements. Created by Sal Khan.
This video lesson explains how social theories such as intersectionality, class consciousness, and absolute vs relative poverty relate to the field of healthcare.
10 social psychology questions in an ineractive quiz.
This is a video lesson teaching the concept of social reproduction, or the phenomenon of social inequality repeating itself across generatons.
Institutions are structures of society that fulfill the needs of the society. Not only are they essential to the society's needs, they also help to build the society itself.