Akar kuadrat: Béda antarrépisi

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Baris ka-1:
InDina [[mathematicsmatematik]], the '''squareakar rootkuadrat''' of a [[non-negative]] [[real number]] ''x'' is denoted <math>\sqrt x</math> and represents the non-negative real number whose ''square'' (the result of multiplying the number by itself) is ''x''.
 
For example, <math>\sqrt 9 = 3</math> since <math>3^2 = 3 \times 3 = 9</math>.