Let \( f(x)=\left|\begin{array}{ccc}1+\sin ^{2} x & \cos ^{2} x & 4 \sin 2 x \\ \sin ^{2} x & 1+.... VIDEO
Let \( f(x)=\left|\begin{array}{ccc}1+\sin ^{2} x & \cos ^{2} x & 4 \sin 2 x \\ \sin ^{2} x & 1+\cos ^{2} x & 4 \sin 2 x \\ \sin ^{2} x & \cos ^{2} x & 1+4 \sin 2 x\end{array}\right| \), thenhttps://bit.ly/YTAI_PWAP https://www.pw.live
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\[
\left.\begin{array}{l}
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\[
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\[
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