Mathematics · 2013
JEE Main · 25 April 2013, Shift 1 · Q74
Let f:[-2,3] →[0, ∞) be a continuous function such that f(1-x)=f(x) for all x ∈[-2,3]. If R_1 is the numerical value of the area of the region…
Let $\displaystyle f:[-2,3] \rightarrow[0, \infty)$ be a continuous function such that $\displaystyle f(1-x)=f(x)$ for all $\displaystyle x \in[-2,3]$.
If $\displaystyle \mathrm{R}_1$ is the numerical value of the area of the region bounded by $\displaystyle y=f(x), x=-2$, $\displaystyle x=3$ and the axis of $\displaystyle x$ and
$$\mathrm{R}_2=\int_{-2}^3 x f(x) \mathrm{d} x \text {, then : }
$$
Official answer
(4)
$\displaystyle R_1=2 R_2$
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JEE Main 2013 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.