Mathematics · 2023
JEE Main · 1 February 2023, Shift 1 · Q77
For a triangle A B C, the value of cos 2 A+ cos 2 B+ cos 2 C is least. If its inradius is 3 and incentre is M, then which of the following is NOT…
For a triangle $\displaystyle A B C$, the value of $\displaystyle \cos 2 A+\cos 2 B+\cos 2 C$ is least. If its inradius is $\displaystyle 3$ and incentre is $\displaystyle M$, then which of the following is NOT correct?
Official answer
From NTA’s final answer key for this paper.
(3)
area of $\displaystyle \triangle A B C$ is $\displaystyle \frac{27 \sqrt{3}}{2}$
More from Properties of Triangle
JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.