Question

S=ab^2/корень3а+5 информатика

Answer 1

S=(a·b):2 - формула для нахождения площади прямоугольного треугольника по его двум катетам (a и b).

Answer 2

It looks like you've provided an equation or expression involving variables and mathematical operations. However, there are some parts of the expression that are not clear due to the use of non-standard characters like "корень" which seems to mean "square root" in Russian, and the variables "a" and "b" are not defined. Additionally, there's an "информатика" at the end, which means "informatics" in Russian, but it's not clear how it relates to the equation.

If you could provide more context or clarify the expression, I'd be happy to help you understand or solve it. Please define the variables and mathematical operations clearly, and let me know what specific information or assistance you're seeking regarding this expression.