704
а) 5(2-3у²)²-15у^4
5((2-3у²)²-3у^4)
5(4-12у²+9у^4-3y^4)
5(4-12y²+6y^4)
б) -4x(1+2x³)²+15x^4
-4x(1+4x³+4x^6)+15x^4
-4x-16x^4-16x^7+15x^4
-4x-x^4-16x^7
А) y'=[1/(x+√(x²-1))]*(1+2x/2√(x²-1))=(1+x/√((x²+1))/(x+√(x²-1))
б) siny+xy'cosy+y'sinx+ycosx=0
y'(xcosy+sinx)=-siny-ycosx
y'=-(siny+ycosx)/(xcosy+sinx)
в) y'=[(e^x)(x+4)^4/√(5x-1)]'={[(e^x)(x+4)^4+4(e^x)(x+4)^3]√(5x-1)-(e^x(x+4)^4)(5/2√(5x-1))}/(5x-1)
1)28с<span>^{2}+14с-49-14с+с<span>^{2}=27с<span>^{2}-49</span></span></span>