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is [tex] \sqrt{16a ^{2} [/tex] a rational algebraic expression?why?

Sagot :

Yes because a rational expression is nothing more than a fraction in which the numerator and/or the denominator are polynomials.[tex] \sqrt{16a^{2}[/tex] =4a. The square root of 16 is 4 and the square root of [tex] a^{2} [/tex] is a. Therefore it is a rational expression.