Qual alternativa apresenta uma fração com denominador sendo um número irracional? Escolha 1 resposta: A (1)/(sqrt (9)) B (1)/(sqrt (3)) C (1)/(sqrt (25)) D (1)/(sqrt (4))

The question asks for a fraction where the denominator is an irrational number. An irrational number is a number that cannot be expressed as a ratio of two integers. In other words, it cannot be written as a simple fraction. Option A: simplifies to , which is a rational number.Option B: cannot be simplified to a rational number, so it is an irrational number.Option C: simplifies to , which is a rational number.Option D: simplifies to , which is a rational number.Therefore, the correct answer is option B.