(5x-1/2)^-3/4+(x-1)^2/3=1/[(5x-1/2)^1/4]^3+[(x-1)^1/3]^2=1/[4次根号下(5x-1/2)]^3+[3次根号下(x-1)]^2
要使其有意义,则须5x-1/2>0,即x>1/10,x的取值范围是x>1/10
(5x-1/2)^-3/4+(x-1)^2/3=1/[(5x-1/2)^1/4]^3+[(x-1)^1/3]^2=1/[4次根号下(5x-1/2)]^3+[3次根号下(x-1)]^2
要使其有意义,则须5x-1/2>0,即x>1/10,x的取值范围是x>1/10