Question

А)1/2√2=? б)31/4√2 +1=?

Answer 1

Я попыталась:"D

Короче, шас мы тоже эту тему проходим.. И... Вподе с этим у меня все норм. Ну.. За контрольную 5. Поэтому как-то так. Но это не точно, говорю сразу.

Answer 2

Let's solve the expressions step by step:

А) 1/2√2: To simplify this expression, we can rationalize the denominator by multiplying both the numerator and the denominator by the conjugate of the denominator (i.e., √2). The conjugate of √2 is -√2.

1/2√2 * (√2/√2) = (√2/2√2) = √2/(2 * √2) = √2/2.

So, 1/2√2 simplifies to √2/2.

Б) 31/4√2 + 1: To add these two fractions, we need to have a common denominator. In this case, the common denominator is 4√2.

Rewrite 1 as (4√2)/(4√2):

31/4√2 + 1 = 31/4√2 + (4√2)/(4√2) = (31 + 4√2)/(4√2).

Since we cannot simplify this fraction any further without knowing the specific context or if there is any common factor that can be extracted from both the numerator and the denominator, the expression 31/4√2 + 1 is already in its simplest form.