Pt LG hay nè!!!

B

bookjn

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C

cariben500

[tex]\Leftrightarrow 3\sqrt{2}sinx - 2cosx\times sinx +cos2x -2 = 1-sin2x \Leftrightarrow 3\sqrt{2}sinx - sin2x + cos^{2}x -2=1-sin2x \Leftrightarrow 3\sqrt{2}sinx + cos2x -2=1 \Leftrightarrow 3\sqrt{2}sinx -2=1-cos2x \Leftrightarrow \frac{3\sqrt{2}}{2}sinx-1 =sin^{2}x[/tex]
Mình nghĩ là vậy!
 
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