Skip to content

Antiderivatives & Definite Integrals · Easy Worksheet 2

Antiderivatives & Definite Integrals — Easy Worksheet 2

Grade 12 · MathSheets    Name: ____________________   Date: __________

For an antiderivative, include + C (like x^3 + 2x + C). For a definite integral or area, give the number.

How to solve

Reverse power rule: the antiderivative of axn is (an + 1)xn+1 + C. For a definite integral from a to b, find an antiderivative F and compute F(b) - F(a). When f(x) ≥ 0, that number is the area under the curve.

Example

Find the antiderivative: ∫(2x) dx

Answer: x² + C

right so far
1. Find the antiderivative: ∫(6x² + 4x) dx
2. Find the antiderivative: ∫(9x² + 2x) dx
3. Evaluate the definite integral ∫ from 2 to 5 of (9x² + 2x) dx.
4. Find the area of the shaded region under y = 3x² + 3 from x = 0 to x = 2.
-11234-22468101214161820
5. Find the antiderivative: ∫(6x² + 1) dx
6. Evaluate the definite integral ∫ from 2 to 3 of (6x² + 1) dx.
7. Evaluate the definite integral ∫ from 2 to 5 of (3x² + 1) dx.
8. Find the area of the shaded region under y = 2x + 1 from x = 1 to x = 2.
-11234-2-112345678910

/ right