计算:(1)(√xy+2√y/x+√x/y+√1/xy)√xy (2)若2x^2+3与2x^2-4互为相反数,则x=(3)若kx^2+x=3x^2+1是一元二次方程,k取值范围是
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计算:(1)(√xy+2√y/x+√x/y+√1/xy)√xy (2)若2x^2+3与2x^2-4互为相反数,则x=(3)若kx^2+x=3x^2+1是一元二次方程,k取值范围是
计算:(1)(√xy+2√y/x+√x/y+√1/xy)√xy (2)若2x^2+3与2x^2-4互为相反数,则x=
(3)若kx^2+x=3x^2+1是一元二次方程,k取值范围是
计算:(1)(√xy+2√y/x+√x/y+√1/xy)√xy (2)若2x^2+3与2x^2-4互为相反数,则x=(3)若kx^2+x=3x^2+1是一元二次方程,k取值范围是
(1).2X+3Y+1
(2).±0.5
(3).k≠3
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