Questions: Площадь фигуры, заключенной между графиками двух функций y=f(x) и y=g(x), где f(x) ≥ g(x) на отрезке [a, b], вычисляется по формуле:
S=∫ab(f(x)-g(x)) dx
Transcript text: Площадь фигуры, заключенной между графиками двух функций $y=f(x)$ и $y=g(x)$, где $f(x) \geq g(x)$ на отрезке $[a, b]$, вычисляется по формуле:
$S=\int_{a}^{b}(f(x)-g(x)) d x$
Solution
Solution Steps
To find the area between the graphs of two functions \( y = f(x) \) and \( y = g(x) \) where \( f(x) \geq g(x) \) on the interval \([a, b]\), we use the integral of the difference of the functions over that interval. The correct formula is:
\[ S = \int_{a}^{b} (f(x) - g(x)) \, dx \]
Step 1: Define the Problem
We need to find the area between the graphs of two functions \( y = f(x) \) and \( y = g(x) \) over the interval \([a, b]\), where \( f(x) \geq g(x) \).
Step 2: Set Up the Integral
The area \( S \) between the two curves is given by the integral:
\[ S = \int_{a}^{b} (f(x) - g(x)) \, dx \]
Step 3: Evaluate the Integral
The integral expression for the area is:
\[ \text{area} = \int_{a}^{b} (f(x) - g(x)) \, dx \]
Final Answer
The correct formula for the area between the curves is:
\[ \boxed{S = \int_{a}^{b} (f(x) - g(x)) \, dx} \]