化简4a^3/(a^4+x^4)+1/(a+x)+2a/(a^2+x^2)+1/(a-x)
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化简4a^3/(a^4+x^4)+1/(a+x)+2a/(a^2+x^2)+1/(a-x)
化简4a^3/(a^4+x^4)+1/(a+x)+2a/(a^2+x^2)+1/(a-x)
化简4a^3/(a^4+x^4)+1/(a+x)+2a/(a^2+x^2)+1/(a-x)
4a^3/(a^4+x^4)+1/(a+x)+2a/(a^2+x^2)+1/(a-x)
=4a^3/(a^4+x^4)+2a/(a^2+x^2)+[1/(a-x) )+1/(a+x)]
=4a^3/(a^4+x^4)+[2a/(a^2+x^2)+2a/(a^2-x^2)]
=4a^3/(a^4+x^4)+4a^3/(a^4-x^4)
=8a^7/(a^8-x^8)
=1/(a+x)+1/(a-x)+4a^3/(a^4+x^4)+2a/(a^2+x^2)
=(a-x+a+x)/(a^2-x^2) )+2a/(a^2+x^2)+4a^3/(a^4+x^4)
=2a/(a^2-x^2) )+2a/(a^2+x^2)+4a^3/(a^4+x^4)
=4a^3/(a^4-x^4)+4a^3/(a^4+x^4)
=8a^7/(a^8-x^8)
化简4a^3/(a^4+x^4)+1/(a+x)+2a/(a^2+x^2)+1/(a-x)
不等式(a-3a-4)x-(a-4)x-1
x^2 -(4a-1)x+3a^2 -a
合并同类项3a*3a+a*a-(2a*2a)+(3a-a*a)3a*3a+a*a-(2a*2a)+(3a-a*a) (2x*2x*2x*2x-5x*5x-4x+1)-(3x*3x*3x-5x*5x-3x)
f(x)=(3a-1)x+4a,x
f(x)=(3a-1)x+4a,x
f(x)=(3a-1)x+4a,x
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