Precalculus : Solve a System of Equations Using the Multiplicative Inverse

Study concepts, example questions & explanations for Precalculus

varsity tutors app store varsity tutors android store

Example Questions

Example Question #1 : Solve A System Of Equations Using The Multiplicative Inverse

What is the inverse of the identiy matrix   ?

Possible Answers:

The identity matrix 

Correct answer:

The identity matrix 

Explanation:

By definition, an inverse matrix is the matrix B that you would need to multiply matrix A by to get the identity. Since the identity matrix yields whatever matrix it is being multiplied by, the answer is the identity itself.

Learning Tools by Varsity Tutors

Incompatible Browser

Please upgrade or download one of the following browsers to use Instant Tutoring: