NDA 2025
- Exam
- NDA
- Year
- 2025
- Subject
- Mathematics
- Chapter
- Area Under Curves
NDA 2025 · Mathematics · Area Under Curves
For the following three (03) items: Consider the function f(x) =...
For the following three (03) items:
Consider the function .
What is the area bounded by the curve , the -axis and the lines and ?
Consider the function .
What is the area bounded by the curve , the -axis and the lines and ?
Options
- A
- B
- C
- D
Correct answer
D.
Step-by-step solution
The given function is .
The required area bounded by the curve , the -axis and the lines and is given by:
Since , we have:
\left[ \dfrac{x^3}{3} \right]_{-2}^{1}A = \dfrac{1^3}{3} - \dfrac{(-2)^3}{3}A = \dfrac{1}{3} - \left( -\dfrac{8}{3} \right)
\dfrac{9}{3} =33
The required area bounded by the curve , the -axis and the lines and is given by:
Since , we have:
\left[ \dfrac{x^3}{3} \right]_{-2}^{1}A = \dfrac{1^3}{3} - \dfrac{(-2)^3}{3}A = \dfrac{1}{3} - \left( -\dfrac{8}{3} \right)
\dfrac{9}{3} =33