Find the geometric mean of 20 and 25
1 answer:
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Answer:
The greatest of the common factors of 2 or more numbers is the greatest common factor of the numbers.
Step-by-step explanation:
As we know that
The greatest common factor of two or more whole numbers is the largest whole number that divides evenly into each of the numbers.
Thus, the greatest of the common factors of 2 or more numbers is the greatest common factor of the numbers.
For example, lets find the greatest common factor of and
.
The possible factors of are:
1, 2, 3, 4, 6, 9, 12, 18, and 36.
The possible factors of are:
1, 2, 3, 6, 9, 18, 27, and 54.
The common factors of 36 and 54 are:
So, from the common factors, it is easy to figure out that 18 is the greatest common factor.
For any arbitrary 2x2 matrices 
and 
, only one choice of exists to satisfy 
, which is the identity matrix.
There is no other matrix that would work unless we place some more restrictions on. One such restriction would be to ensure that is not singular, or its determinant is non-zero. Then this matrix has an inverse, and taking 
we'd get equality.
There is no other matrix that would work unless we place some more restrictions on