distance from (0,0) to (3,4)
The distance is the norm of the difference of the points: the square root of the sum of the squared coordinate differences
Let's calculate:
ⅰ =
ⅰ =
ⓘ Powers are computed before multiplications, additions and subtractions. An integer power is a repeated product: = = , = =
ⓘ Parentheses are computed first: =
ⓘ The square root of a number is the positive number whose square is that number: = ; =
▶Distance: