Comments by "Fhf Fhf" (@fhffhff) on "Продолжение следует" channel.

  1. {y=2,x=±0,5;x²+y²=4,25
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  2. 16*38,5/π=196 28/157cm²
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  3. Это окно Овертона в действии.
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  4. (log2(x)-3)(log2(x)+3)/(log2(x)-5) ²≥0 °0+*1/8-*8+°32+>x x(0;1/8]U[8;32)U(32;∞)
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  5. -a²+8a-13[3;√23] {a=4,a²-8a+13+√23≥0; a=4 cos(8x+9)=-1 x=1/8π+1/4πn-9/8
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  6. x²-5x+6=0 x=(5±√1)/2{3;2}
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  7. (x⁴-0,5x)²+0,75(x-2/3)²+2/3>0✓
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  8. x=±√3
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  9. √(5A)-A/5,√(5A) 5A-√5/5A¹,⁵=A 4√5=A⁰,⁵ A=80
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  10. 0,5DC/sino/sin(-3o+150°)=DC/sin(2o) 3o-60°=±o+2πn[o=30°+πn, o=15°+π/2n;o(0;50°) o=30°;15°A)
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  11. Нет а,б,в,г,е,з,ы. (р)(но)(но)(нр)(о) Я не знаю такого слова.
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  12. a²/√(a²+400)=9 a²=225,a=15 S=15*20=300
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  13. {a+b=arctg7+πn,a-b=arctg5+πm;{a=0,5arctg7+0,5arctg5+π(n+m)/2, b=0,5arctg7-0,5arctg5+π(n-m)/2.
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  14. х^х=2^2048=256^256 х=256
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  15. 22'000-419b²+b⁴=162b√(250-b²) b[0;8],b=5 a=15 S=a²=225✓
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  16. A(1;4),B(xB;5-xB),C(xC;7xC-3)(xB-1)²+(1-xB)2=(xC-1)²+(7xC-7)² xB=±5(xC-1)+1 10=1,6(xB-1)² xB=1±2,5=3,5;-1,5 xC=1,5;0,5;0,5;1,5 y=(7xC-8+xB)/(xC-xB)(x-xB)+yB=-3x +12;1/3x+2 5/6;-3x+2;1/3x+7
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  17. ln(x+2)/ln(2-x)*ln(3-x)/ln(x+3)≤0 x>-2,<2,<3,>-3 x)-2;2) x=-1;2,x≠1;-2 °-2-*-1+°1-*°2>x x(-2;-1]U(1;2)
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  18. (|x|-1-√24)/x²≤0+-1-√24*-°0-*1+√2 4+>x x[-1-√24;0)U(0;1+√24]
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  19. log2(x)√((log2(x)-2)/log2(x))≤√2 [{x≥1,x≤2^(1+√3);x(0;1);x(0;2^(1+√3)]
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  20. x√(3-3x²)≥-x²+x+0,5,x[-1;1][x[-1;0,5-√0,75]; x[-1;0,5-√3/2](z-9/64)³-9/256(z-9/64)-9/2¹²=0 z-9/64=(9/2¹³+3√-3/2¹³)¹/³+...=√ 3/8cos(π/9+2/3πn) z=9/64+√3/8 cos(π/9+2/3πn) y=√(9+8√3cos(π/9))/8+√(9+8√3cos(7/9π))/8-√(9+8 √3cos(13/9π))/8;√(9+8√3cos(π/9))/8-√(9+8√3cos(7/9π))/8+√(9+8 √3cos(13/9π))/8;-√(9+8√3cos(π/9))/8+√(9+8√3cos(7/9π))/8+√(9+8 √3cos(13/9π))/8;-√(9+8√3cos(π/9))/8-√(9+8√3cos(7/9π))/8-√(9+8 √3cos(13/9π))/8 x=1/8+√(9+8√3cos(π/9))/8+√(9+8 √3cos(7/9π))/8-√(9+8√3cos(13/ 9π))/8;1/8+√(9+8√3cos(π/9))/8-√ (9+8√3cos(7/9π))/8+√(9+8√3cos (13/9π))/8;1/8-√(9+8√3cos(π/9))/8+√(9+8√3cos(7/9π))/8+√(9+8√3c os(13/9π))/8;1/8-√(9+8√3cos(π/9))/8-√(9+8√3cos(7/9π))/8-√(9+8 √3cos(13/9π))/8
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  21. √(a²-9)+a=6 a[3;6] a²-9=a²-12a+36 a=15/4 {a1²+b²+14/25a1b=36,c1=a1*2/√5 ±√(225/16-a1²/5),c2=-a1+c1*4/√5, c3=1,2a1/√5±√(225/16-a1²/5)*8/5 ±(-4/5/√5a1±3/5√(225/16-a1²/5)), b=0,48a1±√(225/16-a1²/5)*16/5/√ 5±(-8/25a1±6/5/√5√(225/16-a1²/5))±√(225/16-(1,2a1/√5±√(225/16- a1²/5)*8/5±(-4/5/√5a1±3/5√(225/ 16-a1²/5)))²/5),a=0,5arccos(3/5); a1=15/4,b=15/4 c3 c -,c1 c + (15/4=6,15×;3,75✓) c1=3√5(+) R=15/4/2/√(1/5)=15/8√5
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  22. (1+Ae^(-kt))-²Ae^(-kt)*k
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  23. А почему выговаривает так странно р?
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  24. √(120+49)=13 b²-24b+119=0 b=12±5=7;17 EB=5√2 EA=√(289-120)=13 B)
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  25. 0,0223=E✓
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  26. 0,5/sin70°,0,5/cos20° x=80°✓
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  27. а=9/4✓ х=(3±√(9-4а))/2 √(9-4a)/2 (0,5;1,5] 9-4a(1;9],a[0;2) a[0;2)U{9/4}
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  28. 103/2+3*9,5=51,5+28,5=80
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  29. En=1;∞(-1)^(n-1)/2/n(lnx|∞+ Em=1;°(-n)^mx^(2m)/2/m/m!(=))=∞
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  30. X(-∞;-1]U[0;1] 0=-x²-x+1 x=(-1±√5)/2{(-1+√5)/2;(-1-√5(/2}
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  31. 66(tg2a-tga)=55 (tga+5/18)³+83/108(tga+5/18)-3115/18²/9=0 tga=-5/18+(3115+√(3115²+83³))¹/³/18+(..-..)..=1/2 132/sin(3a)*sina= 60
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  32. X=1+3(n-1) (-1+3n)/2*n=1717 n=1/6+203/6=34{100}
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  33. 4x²-2x-56=0 x=(1±15)/4=4;-3,5✓
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  34. √29/√π S=π*29/π•0,5=14,5✓
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  35. Y=x±4√(x+c/8)✓
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  36. tgx=tg(π/2-x-1) x=π/4-0,5+πn/2
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  37. x²+4x-4=0 x=-2±√8 (x-2)((x-1)²+(x-1)+3)=0 x=2 1 7/8<2
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  38. (x-2)!=2(x+1) x-2=4,x=6 4!=14×
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  39. X²-x-1 ax¹⁷+bx¹⁶+1=(2584a+1597b)x+1597a+987b+1=0 {a=-1597,b=2584.
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  40. limn->∞((4n/e)/n)=4/e
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  41. (1+√(0,5√17+0,5)+i√(0,5√17-0,5))/2
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  42. √40/(4/3√3+6)=(-2√30+9√10)/23
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  43. {b=(5-ax)/y,y=(10-ax²)/(5-ax), x=(6a²+6 15a+300)(7a-15)/a/(101a³-564a²+595a+ 75),[a=0,a=-205,12,a=-50,6,a=-1,76,a=-0,49, a=4,63*10-⁵,a=2,14; {(-205,12;2,29;-0,001; 2,09)(-50,6;2,90;0,0077;1,86)(-1,76;3,91; 3,63;2,91)(-0,49;2,50;-0,0094;2)(4,63*10-⁵; -5,43*10-⁵;-1295515,49;-1195'833,26)(2,14;2,37;0,063;2,05)} ax⁵+by⁵=91,32;64, 56;-293,38;80;3,02*10²⁶;85,81
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  44. X=(17/2±13/2)/10=1,5;0,2
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  45. 2R2-4R+4=100 R²-2R-48=0 R=1±7=8 S=16π-24
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  46. -3b/2+1±√(-3/4b²+b) 1,5±(-3/4b²+b)-⁰,⁵(-3/4b+1/2)=0 0=b²-1 1/3b+1/9 b=2/3±√3/3 +*2/3-√3/3->b*2/3+√3/3+>b max=2√3/3 min=-1/8 min=-2√3/3 max=1 2/3 [-2√3/3;5/3]
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  47. 5-a²+1+2√(5-a²)a/√5=5 0=2,25a⁴-7,5a²+1,25,a[1;√5] a=√((5+√20)/3) S∆=(5+√5)/6
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  48. (1;2)(2;1) х²(у-1)+ху²-у²-1=0 х=(-у²±√(у⁴+4у³-4у²+4у-4))/2/(у-1) (у²+2y-4)²+20у-20=n² {0≤(y-4-9,5)(y-4+√9,5),0≤(y+6-√50,5)(y+6+√50, 5);y(-∞;-6-√50,5]U[4+√9,5;∞) y[-13;7] y=2,n=6 y=-5,n=1 x=(-4±6)/2=1;-5 x=(-25±1)/-12=2;×{(-5;2)(2;-5)}
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  49. y+1/2±√(8y+1)/2=x y≥0, y=(n²-n)/2, x=(n²+n)/2;(n²-3n+2)/2,nZ
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  50. x+1=±x;±xi x=-0,5;-0,5-+i/2
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