Rasionalkan bentuk akar 15 per 2√5 = di bantu ya kk

akar 15/ 2akar5 = akar15/2akar5 × 2akar5/2akar5 = 2akar75 / 4akar25
= 2akar25.3 / 4.5
= 2.5akar3 / 20
= 10akar3/20
= 1akar3/2 = akar3/2

√15/2√5
= √15/2√5 × 2√5/2√5
= 2√75/4√25
= 2√(25.3)/4.5
= 2.5√3/4.5
= 2√3/4
= √3/2= ½√3