Question

"а" делить (дробная черта) на "б" + "б" делить на "а" - 2

Answer 1

Решение в фотографии

Answer 2

To simplify the expression "а" ÷ "б" + "б" ÷ "а" - 2, let's start by converting the divisions into fractions.

The expression can be written as: (а / б) + (б / а) - 2

Next, we need to find a common denominator for the two fractions. The common denominator for "б" and "а" is "б * а".

Now, let's rewrite the expression with the common denominator: (а * а + б * б) / (б * а) - 2

Now, let's simplify the numerator: (а * а + б * б) - 2 * (б * а) / (б * а)

Now, let's factor out "б * а" from the numerator: (а * а + б * б - 2 * б * а) / (б * а)

Now, let's simplify the expression in the numerator: (а * а - 2 * б * а + б * б) / (б * а)

Finally, let's factor the numerator: (а - б)^2 / (б * а)

So, the simplified expression is: (а - б)^2 / (б * а)