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Calculate the value of the area between the function f(x)=x^2-4f(x)=x2−4 and the x-axis on the interval from x = 0 to x = 2. round your answer to one decimal place.

2 Answers

7 votes
To determine the area, calculate first for the differential of the equation given.

f(x) = x² - 4

Differentiating,

f'(x) = 2x

Then, we officially have 2.
f'(2) = 2(2) = 4

f'(0) = 2(0) = 0

To determine the area, subtract the given answer to get 4 units squared.

Answer: 4 units/guarrantee

User Nader Shirazie
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When you are asked to find the area under the curve with a given equation, this is an application of integral calculus. The concept is that, any infinitesimal strip under the curve, when added together, equals the area. Thus, integrate the given equation with limits from 0 to 2.


A = \int\limits^2_0 {(x^(2)-4) } \, dx

A = [x³/3 - 4x]lim 0->2
A = (2³/3 - 4(2)] - (0³/3 - 4(0)]
A = 16/3 - 0
A = 16/3 ≈ 5.3 sq. units
User Jorge Cohen
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7.2k points

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