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1.4: Радикали та раціональні вирази
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In general terms, if $a$ is a positive real number, then the square root of $a$ is a number that, when multiplied by itself, gives $a$ .The square root could be positive or negative because multi...In general terms, if $a$ is a positive real number, then the square root of $a$ is a number that, when multiplied by itself, gives $a$ .The square root could be positive or negative because multiplying two negative numbers gives a positive number. Якщо $a$ є дійсним числом з хоча б одним $n^{th}$ коренем, то основний $n^{th}$ корінь $a$ , записаний як $\sqrt[n]{a}$ , - це число з тим же знаком, $a$ що при підвищенні до $n^{th}$ степені дорівнює $a$ .