Answer:
If AB = BA = I, then B is inverse of A and vice-versa.
Step-by-step explanation:
Given: AB = BA = I
To find: The relation between matrix A and B.
If AB = BA = I, then B is called the inverse matrix of A and is denoted by .
In that case, A is said to be invertible.
Also, if B is the inverse of A, then A is also the inverse of B.
Hence, the relation between A and B is that both are inverse of each other.
Answer:
represents the radius (in cm) of a circle whose circumference is 15 cm
if , then a represents the circumference (in cm) of a circle whose radius is 15cm
Step-by-step explanation:
In a circle the following relationship can be posed:
Let g be a function that determines the radius of the circle from the value of its circumference, so, you have:
Thus, represents the radius (in cm) of a circle whose circumference is 15 cm. You have to
.
On the other hand, if , then
represents the circumference (in cm) of a circle whose radius is 15cm. You have to