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1.
[tex]1 + sin(x/2)sinx - cos(x/2)\sin^2 x = 2cos^2 (pi/4 - x/2 ) [/tex]
2.
[tex]\ log_2 (4x^2 - 4x + 1) -2x > 2 - (x+2)log_{1/2} ( 1/2 -x) [/tex]
[tex]1 + sin(x/2)sinx - cos(x/2)\sin^2 x = 2cos^2 (pi/4 - x/2 ) [/tex]
2.
[tex]\ log_2 (4x^2 - 4x + 1) -2x > 2 - (x+2)log_{1/2} ( 1/2 -x) [/tex]
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