# FUNDAMENTALS OF COMPUTER

## DATABASE FUNDAMENTALS

### DATA WAREHOUSING AND DATA MINING

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Euclidean distance measure is
 A A stage of the KDD process in which new data is added to the existing selection B The process of finding a solution for a problem simply by enumerating all possible solutions according to some pre-defined order and then testing them C The distance between two points as calculated using the Pythagoras theorem D None of the above
Explanation:

Detailed explanation-1: -In mathematics, the Euclidean distance between two points in Euclidean space is the length of a line segment between the two points. It can be calculated from the Cartesian coordinates of the points using the Pythagorean theorem, therefore occasionally being called the Pythagorean distance.

Detailed explanation-2: -We can rewrite the Pythagorean theorem as d=√((x 2-x 1)²+(y 2-y 1)²) to find the distance between any two points.

Detailed explanation-3: -Determine the Euclidean distance between two points (a, b) and (-a, -b). d = 2√(a2+b2). Hence, the distance between two points (a, b) and (-a, -b) is 2√(a2+b2).

Detailed explanation-4: -Answer» C. the distance between two points as calculated using the pythagoras theorem.

Detailed explanation-5: -The Euclidean distance between two points in a two-dimensional space can be calculated using the Pythagorean Theorem formula √[(x2-x1)² + (y2-y1)²] .

There is 1 question to complete.