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JEE Main 20244 AprilMorning Shift
Exam
JEE Main
Year
2024
Date
4 April
Shift
Morning Shift
Subject
Mathematics
Chapter
Definite Integration

JEE Main 2024 · 4 April · Morning Shift · Mathematics · Definite Integration

Let f(x)=\ array lr -2, & -2 ≤ x ≤ 0 x-2, & 0 < x ≤ 2 array . and...

Let f(x)=\left\{−2,−2≤x≤0x−2,0<x≤2\begin{array}{lr}-2, & -2 \leq x \leq 0 \\ x-2, & 0 < x \leq 2\end{array}\right. and h(x)=f(∣x∣)+∣f(x)∣h(x)=f(|x|)+|f(x)|. Then ∫−22h(x)dx\int_{-2}^2 h(x) \mathrm{d} x is equal to :Let f(x)=\ array lr -2, & -2 ≤ x ≤ 0 x-2, & 0 < x ≤ 2 array . and h(x)=f(|x|)+|f(x)| . Then ∫_ -2 ^2 h(x) d x is equalLet f(x)=\ array lr -2, & -2 ≤ x ≤ 0 x-2, & 0 < x ≤ 2 array . and h(x)=f(|x|)+|f(x)| . Then ∫_ -2 ^2 h(x) d x is equalLet f(x)=\ array lr -2, & -2 ≤ x ≤ 0 x-2, & 0 < x ≤ 2 array . and h(x)=f(|x|)+|f(x)| . Then ∫_ -2 ^2 h(x) d x is equal

Options

  1. A1
  2. B6
  3. C4
  4. D2

Correct answer

D. 2

Step-by-step solution

Let f(x)=\ array lr -2, & -2 ≤ x ≤ 0 x-2, & 0 < x ≤ 2 array . and h(x)=f(|x|)+|f(x)| . Then ∫_ -2 ^2 h(x) d x is equal
Let f(x)=\ array lr -2, & -2 ≤ x ≤ 0 x-2, & 0 < x ≤ 2 array . and h(x)=f(|x|)+|f(x)| . Then ∫_ -2 ^2 h(x) d x is equal
h(x)=\left\{x−2+2−x=0,0≤x≤2−x−2+2=−x−2≤x<0\begin{array}{cc}x-2+2-x=0, & 0 \leq x \leq 2 \\ -x-2+2=-x & -2 \leq x < 0\end{array}\right.Let f(x)=\ array lr -2, & -2 ≤ x ≤ 0 x-2, & 0 < x ≤ 2 array . and h(x)=f(|x|)+|f(x)| . Then ∫_ -2 ^2 h(x) d x is equal
⇒∫02 h(x)dx=0\Rightarrow \int_0^2 \mathrm{~h}(\mathrm{x}) \mathrm{dx}=0 and ∫−20 h(x)dx=2\int_{-2}^0 \mathrm{~h}(\mathrm{x}) \mathrm{dx}=2
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