Comments by "Fhf Fhf" (@fhffhff) on "Mash Room" channel.

  1. (7-i)/2-1/4*i=3,5-3/4i=2 i=2 C(7;2)*/,5²=21/4
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  2. {(0;0;0)(3;3;3)}{z=(x²+y2)/6,×,y=-x-6.
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  3. (1/7)^x(4log(9/7)(1/7)+9^x)*7²ln(9/ 7)=0 x=log9(4log(9/7)7)-*+>x />=\> x≤log3(2√log(9/7)7) 13+24/43<20+(5 115/261)/29× Существует минимум 1 решение. Х=2(85=85) Других решений нет.
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  4. cosx*sin^(-4 2/2025)x/(4 2/2025)+ $dxsin^(-3 2/2025)x/(4 2/2025)+c
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  5. {x+y=±3,x-y=±1;{(2;1)(-2;-1)}
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  6. A≥0,7-(A²-7)²=A (A²+A-7)(A²-A-6)=0 A=(-1+√29)/2✓;(-1-√29)/2×;×3;-2×
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  7. tg³x/3-3tgx+3ln|cosx|-x-0,5ln|tg(x π/4)|(0;π/6)=-28√3/27+3ln(√3/2)- π/6-0,5ln(2-√3)
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  8. π²/8-π/2(0,5ln2+4π/3/√3)+3,09
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  9. 24/35(cm)
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