√10 x √2 ÷ √28 =.... A. √5 B. √7 C. 1/4 √35 D. 1/7 √35

Kelas 9 Matematika
Bab Akar dan Pangkat

√10 x √2 : √28
= √(20/28)
= √(5/7)
= √5 : √7
= ((√5)/(√7)) . ((√7)/(√7))
= (√35)/(√7²)
= (√35)/(7)
= (1/7) √35

✩✩ D ✩✩