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0. Review of College Algebra - 2! 1부

0. Review of College Algebra / Rationalizing Denominators / 문제 1

문제 1

Rationalize the denominator of the given radical expression.
18/(√19 + √13)

A

√19 - √13

B

2(√19 - √13)

C

3(√19 - √13)

D

(√19 - √13)/3