亲爱的网友:f(x)=log9(x 8-α/x)在[1,正∞)include
问题描述:
亲爱的网友:f(x)=log9(x 8-α/x)在[1,正∞)include
答
A={x|x2-3x 2=0}对比23x(-5)-(-3)/(3/128)对比f(x)=ax^2 bx cx^2/a^2 y^2/b^2=1中,SPF1F2=b^2*tanβ/2