Comments by "Fhf Fhf" (@fhffhff) on "MrGEO" channel.

  1. 601+2/3+1/3=602
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  2. (X-1)⁴-10(x-1)²+24(x-1)-27=0, (z-1)(z²-4z+9)=0 z=1;2±√5i x=±√10✓
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  3. (x-1)⁴-10(x-1)²+32(x-1)-7=0 (z-5/3)³-1/3(z-5/3)-11 25/27=0 z=5/3+(161+72√5)¹/³/3+(..-..)..; 5/3-(161+72√5)¹/³/6-(..-..)..±√(3/4 ((161+72√5)¹/³/3+(..-..)..)²-1/3)i x=-1±√5
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  4. {x+y=a,xy=b;{a³-15a+18=0,b=0,5a²-2,5; a=(-9+√(81-5³))¹/³+(..-..)..=2√5cos (1/3arccos(-9/5/√5)+2/3πn) b=10cos²(1/3arccos(-9/5/√5)+2/3 πn)-2,5 {y=√5cos(1/3arccos(-9/5/√5)+2/3πn)-+√(-2,5cos(2/3arccos (-9/5/√5)+4/3πn)),x=√5cos(1/3arc cos(-9/5/√5)+2/3πn)±√(-2,5cos (2/3arccos(-9/5/√5)+4/3πn)).n=0;2 x⁷+y⁷=129;(√5cos(1/3arccos(-9/5/√5)+4/3π)+√(-2,5cos(2/3arccos(- 9/5/√5)+8/3π)))⁷+(√5cos(1/3arcco s(-9/5/√5)+4/3π)-√(-2,5cos(2/3arc cos(-9/5/√5)+8/3π)))⁷
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  5. 30^(1/log2(30))=2
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  6. a/(a+b)*c,/_1/2,/_1/2+/_2 (c²+2ab (1+cos/_1))/2/(a+b)/cos0,5/_1-r(1/sin0,5/_1-1)≠a/(a+b)*c/sin/_3*sin(/_1/2+/_2)
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  7. X≤1 0=x⁴+6x²-40 x²=-3±7=4;-10 x=±2{-2}
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  8. (1 1 1|14) (0 5/2 -1|11/2) (0 0 1|96/13){Y=67/13,x=6/13.{(6/13;67/13;96/13)}
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  9. √(6-2x)=2x≥0,±5/4=x+1/4 x=✓1;-1,5×
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  10. {y=10-x,[x=8,x=2;{(2;8)(8;2)}
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  11. X=(√13-√5)/4 (-11'207'141+1'390'142√65)/64✓
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  12. (2x²-19x+42)(x²-7x+11)/(x-2)/(x-5)/(x-3)/(x-4)=0 [x=5,5,x=4,x=(7±√5)/2.
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  13. {z=(x³+16)/x/y,y=(x³+19)¹/³, [x=-8/3,x=2;{(2;3;4)(-8/3;1/3;-7 1/3)}
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  14. Sin80°/sin40°=2cos40° √(2-2cos40°)=2sin20° 2=1/sinx x=30°;150°(0;110°) x=30°✓
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  15. 6*1,5²-5*1,5+4=10
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  16. f(x)=64x⁵-40x³+5x✓
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  17. e^(e^(0,5x¹/³lnx)lnx)e^(0,5x¹/³lnx)(x¹/³(lnx+3)lnx+6)x-¹/6=0 x(e-³;1), 1/3x-²/³(ln²x+9lnx+9)=0 x=e^(-4,5±3√5/2)°0+*-*+>x min=e^(-1,5+√5/2)(18-9√5)+6~-62 65/127/113+5>0/> x=2^n n*2^(n/2*2^(n/3))=16,58*2^(8,29*2⁵,⁵²(⁶))/> x=2^16,58✓
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  18. ((x-127,5)²+5/12)³-1/3((x-127,5)²+5/12)-18 2/27=0 x=127,5±√(-5/12+(244+63√15)¹/³/3+(..-..)..)✓
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  19. 0,5(1/(1²-1+1)-1/(1²+1+1)+1/(2²- 2+1)-1/(2²+2+1)+..+1/(50²-50+1)-1/(50²+50+1))=1275/2551
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  20. (2x²-5x-3)(2x²-3x-5)=0 x=(5±7)/4;(3±7)/4{3;-0,5;2,5;-1}
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  21. [0=x³⁴-140x³⁰+8400x²⁶-280'000x²²+5600'000x¹⁸-21*32*10⁵*x¹⁴+(448*10⁶-1)*x¹⁰-100x⁸-160004*10³x⁶-80000x⁴-8*10⁵x²-20⁵,x=0;x=-0,59;-0,29;0,643{0;±0,802}
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  22. 0=x⁴+5x³+x²-18x-24 x=2;-4
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  23. X=(√17-√5)/6 (517-56√85)/27 (517+56√85)/27 1034/27✓
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  24. f(x+1/3/x)=3((x+1/3/x)⁵-5/3(x+1/3/x)³+5/9(x+1/3x-¹)) f(x)=3x⁵-5x³+5/3x f(2)=59 1/3
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  25. (√X+1,5)⁴-22,5(√x+1,5)²+90 9/16=0 (√x+1,5)²=(22,5±12)/2=17,25;5,25 x=(47-3√85)/2;(15-3√21)/2
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  26. (2+√3)(√1,5+√0,5)=1,5√6+2,5√2 1,5√6-2,5√2 3√6✓
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  27. (X+0,5)⁴-15,5(x+0,5)²+37(x+0,5)-68 11/16=0
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  28. Х=(-а±√((а-2116)(а-1936)))/2+ 1012 а(-=;1936]U[2116;°) (a-2026)²-90²=n²,[{a=4052,n=2024;{a=2704,n=672;{a=2436,n=400;{a=2260,n=216;{a=2166,n=110;{a=2128,n=56;{a=2128,n=48;{a=2116,n=0;{a=2128,n=48;{a=2132,n=-56;{a=2166,n=-110;{a=2260,n=-216;{a=2436,n=-400;{a=2704,n=-672;{a=4052,n=-2024; 9×2=18
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  29. (√(R²-2)-√8)²+2=(√(R²-9)-6)²+3² 9/4+√2/3√(R²-2)=√(R²-9) 12 1/16+3√2/2√(R²-2)-7/9(R²-2)=0 R=√(9(9√2+√1513)²/28²+2) S=π(16643+162√3026)/28²(cm²)
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  30. (√(R²-6,5²)-6)²+11,5²=R² 126-12√(R²-42,25)=0 R=√152,5
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  31. У меня, похоже,ОКР.
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  32. A1=1,a2=2,a3=24,an=(6a(n-1)²a(n-3)-8a(n-1)a(n-2)²)/a(n-2)/a/(n-3) q=0
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  33. f(xy+1)=xf(y)-f(x)+6,f(1)=-f(0)+6,f(1)=xf (0)-f(x)+6,-f(0)=xf(0)-f(x),f(x)=xf0+f0,f0= f0,✓,f(1)=1f0+f0,-f0+6=2f0,f0=2 fx=2x+2
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  34. 86400*0,005=432с
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  35. 365,2422/(12 7/19)=29,53018
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  36. ±√(AP²-l1²+((l2²-l1²)/BC-BC)²/4)-0, 5(l2²-l1²-BC²)/BC=x coso=(-+√(AP²-l1²+((l2²-l1²-BC²)/B C)²/4)(l2²-l1²-BC²)+0,5BC(l2²-l1²-BC ²)²+BC²(2AP²-2l1²))(±√((4AP²-4l1²)B C²+(l2²-l1²-BC²)²)+l2²-l1²-BC²)/AP/((4AP²-4l1²)BC)$(-+√(AP²-l1²+((l2²-l1 ²-BC²)/BC)²/4)(l2²-l1²-BC²)+0,5BC(l2 ²-l1²-BC²)²+BC²(2AP²-2l1²))(√((4AP ²-4l1²)BC²+(l2²-l1²-BC²)²)±(l2²-l1²-BC ²))/((4AP²-4l1²)BC)*(AP²-l1²+((l2²-l1 ²)/BC-BC)²/4)-⁰,⁵dAP(0;BC)=l2-l1
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  37. Х[2;8],у(х;8] y≥(4+102x)/(98-x) (x+2)²≥0 x≤78/11 $(2;78/11)(-1000 0/(x-98)-102-x)dx+$(78/11;8)(8-x) dx=-10000ln|x-98|-102x-x²/2(2;78/ 11)+8x-x²(78/11;8)=10'000ln(132/125)-543 29/121
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  38. (z³)²-2z³-8=0 z³=(2±6)/2=4;-2 z=4¹/³;-2¹/³. x=4¹/³-2/4¹/³=2²/³-2¹/³;-2¹/³+2²/³{2²/³-2¹/³}
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  39. 3/7,2/5 (29/35)/(29/35)=1 a=6 S∆=(6+14+15)*6=210
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  40. {2=a+b,-12=a-b;{(-5;7)}
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  41. X[0;3+√14),(x-1,5)⁴-18,5(x-1,5)²+76 9/16=0 (x-1,5)²=(18,5±6)/2=12,25; 6,25 x-1,5=±3,5;±2,5 x=5;-2;4;-1{5;4}
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  42. C/√3cisx=ccos2x 0=2cos²x-√3/3cosx-1 cosx=(√3±5√3)/12≥0 x=30° S∆=0,5*c√3/2*c/2=c²√3/8
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  43. Ei=0;n-1|(i/n;(i+1)/n)(e^(nx-i)/nx²-e^ (nx-i)/n²*2x+e^(nx-i)/n³*2)=Ei=0;n-1 e/n³*2i+(e-2)n-²=en-¹-2n-² 0✓
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  44. {xy=a,x+y=b;{a⁴b=90/a⁴,a³b(b²-3a)=42;
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  45. x(-∞;-3)U[1;3],0=(x+1)⁴-8(x+1)²+x+1+12 (z-4/3)³-13/3(z-4/3)-5935/64/27=0 z-4/3=(5935/128+√(5935²/128²-13 ³))¹/³/3+(..-..)..=2/3√13cos(1/3arcc os(5935/128/13/√13)+2/3πn) z=4/3+2/3√13cos(1/3arccos(593 5/128/13/√13)+2/3πn) x=-1-√(4/3+2/3√13cos(1/3arccos (5935/128/13/√13)))+√(4/3+2/3√ 13cos(1/3arccos(5935/128/13/√ 13)+2/3π))+√(4/3+2/3√13cos(1/3 arccos(5935/128/13/√13)+4/3π)) ×;-1+√..-√..+√..✓;-1+√..+√..-√..×;-1- √..-√...-√..✓ 47/128<0,8
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  46. 2+861/148'953,172 261/861,3+ 78/261,27/78,24/27 3✓ 173/347✓
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  47. {(1-12/(y+3x))√x=2
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  48. {[{a=-6,b=9;{a=2,b=1;[x=3,x=-1.✓
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  49. √(2x²-98)=l [x=7,x=√63.x>7{√63}
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  50. x=3+1/(4+1/x),x>0 x=±√12{√12}
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