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NDA 2014
Exam
NDA
Year
2014
Subject
Mathematics
Chapter
Matrices

NDA 2014 · Mathematics · Matrices

If A=( array cc 4 & x+2 2 x-2 & x+1 array ) is symmetric, then what...

If \mathrm{A}=\left(4x+22x−2x+1\begin{array}{cc}4 & x+2 \\ 2 x-2 & x+1\end{array}\right) is symmetric, then what is xx equal to?

Options

  1. A2
  2. B3
  3. C-1
  4. D5

Correct answer

D. 5

Step-by-step solution

The correct answer is option (D)
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