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JEE Main 20236 AprilEvening Shift
Exam
JEE Main
Year
2023
Date
6 April
Shift
Evening Shift
Subject
Mathematics
Chapter
Area Under Curves

JEE Main 2023 · 6 April · Evening Shift · Mathematics · Area Under Curves

The area bounded by the curves y = |x - 1| + |x - 2| and y = 3 is...

The area bounded by the curves y=∣x−1∣+∣x−2∣y = \left|x - 1\right| + \left|x - 2\right| and y=3y = 3 is equal to

The area bounded by the curves y = |x - 1| + |x - 2| and y = 3 is equal to

Options

  1. A44
  2. B66
  3. C33
  4. D55

Correct answer

A. 44

Step-by-step solution

Given:

y=f(x)=∣x−1∣+∣x−2∣y = f\left(x\right) = \left|x - 1\right| + \left|x - 2\right|

⇒ f\left(x\right) = \left\{3−2x:x<11;1≤x<22x−3;x≥2\begin{array}{ll}3 - 2x: x < 11; 1 \le x < 2 \\ 2x - 3; x \ge 2\end{array}\right)</p><p>Let us draw diagram ofy = f\left(x\right) \text{ and } y = 3weget,</p><p><imgsrc="https://cdn−question−pool.getmarks.app/pyq/jeemain/fffa10be−f7d1−4bd4−a9cf−a20cf2f6aaeb−image.png"style="width:375px;height:191px;"/></p><p>Requiredareaistheareaoftrapeziumwhichis</p><p>Areawe get,</p><p><img src="https://cdn-question-pool.Quantrex.app/pyq/jee_main/fffa10be-f7d1-4bd4-a9cf-a20cf2f6aaeb-image.png" style="width: 375px; height: 191px;" /></p><p>Required area is the area of trapezium which is</p><p>Area= \dfrac{1}{2}\left[1 + 3\right] \times 2</p><p></p><p>= 4 sq. units

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