Comments by "Fhf Fhf" (@fhffhff) on "Daily Dose Of Internet" channel.

  1. sin(6x²/(x²-1))+sin((2x²-6x-2)/(x²-1))≥0,2 sin((4x²-3x-1)/(x-1)/(x+1))cos((2x²+3x+ 1)/(x-1)/(x+1))≥0,[{sin(4x²-3x-1)/(x-1)/(x+1))≥0,cos((2x²+3x+1)/(x-1)/(x+1))≥0;{sin(4x²-3x-1)/(x-1)/(x+1))≤0,cos((2x²+3x +1)/(x-1)/(x+1))≤0;[{n≥1,хє[(-4πn-2 π+2)/(4πn+2π-8);-1-1,5/(πn-2)],(2x²+3x+1)/(x-1)/(x+1)≥-π/2+2πn,(2x²+3x+1)/(x-1)/(x+1)≤π/2+2πn;{(4x²-3x-1)/(x-1)/(x+1)≥π+2πn,(4x²-3x-1)/(x-1)/(x+1)≤2π+2πn,(2x²+3x+1)/(x-1)/(x+1)≤1,5π+2πn,[n≤0 хє(-∞;-1) U(-1;1)U[(-4πn-π-2)/(-4πn-π+4);∞);n>0,х є(1;(-4πn-π-2)/(-4πn-π+4)]
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