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Matrices and Determinants question

2016 · 9 Apr · Shift 1 · Q26

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JEE Main
Mathematics
Matrices and Determinants
2016 · 9 Apr · Shift 1 · Q26

Matrices and Determinants question

2016 · 9 Apr · Shift 1 · Q26

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1

If P =

\left[ {\begin{matrix} {{{\sqrt 3 } \over 2}} & {{1 \over 2}} \\ { - {1 \over 2}} & {{{\sqrt 3 } \over 2}} \\ \end{matrix} } \right],A = \left[ {\begin{matrix} 1 & 1 \\ 0 & 1 \\ \end{matrix} } \right]\,\,\,

Q = PAPT, then PT Q2015 P is :

A
$\left[ {\begin{matrix} 0 & {2015} \\ 0 & 0 \\ \end{matrix} } \right]$
B
$\left[ {\begin{matrix} {2015} & 1 \\ 0 & {2015} \\ \end{matrix} } \right]$
C
$\left[ {\begin{matrix} {2015} & 0 \\ 1 & {2015} \\ \end{matrix} } \right]$
D
$\left[ {\begin{matrix} 1 & {2015} \\ 0 & 1 \\ \end{matrix} } \right]$

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