把下列各式化成最简二次根式:(1)根号2.5把下列各式化成最简二次根式:(1)根号2.5(2)根号5分之9
问题描述:
把下列各式化成最简二次根式:(1)根号2.5
把下列各式化成最简二次根式:
(1)根号2.5
(2)根号5分之9
答
(1)根号2.5
=√(10/2²)
=√10 /2
(2)根号5分之9
=√5x(3/5)²
=3/5*√5