🛠️ JEE➗ Maths

Let \(A=\left[\begin{matrix}\frac{1}{\sqrt{2}} & -2 \\ 0 & 1\end{matrix}\right]&P=\left[\begin{matrix}\cos \theta & -\si…

Q1

Let \(A=\left[\begin{matrix}\frac{1}{\sqrt{2}} & -2 \\ 0 & 1\end{matrix}\right]&P=\left[\begin{matrix}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta \end{matrix}\right],\theta >0\). If \(B=PA{P}^{T},C={P}^{T}{B}^{10}P&\) the sum of the diagonal element of ' \(c\) ' is \(\frac{m}{n}\) where \(gcd(m,n)=1\), then (m+n) is

a

65

b

258

c

127

d

2049

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