Apakah akar kuadrat mudah 72?

Apakah akar kuadrat mudah 72?
Anonim

Perhatikan bahawa # 72 = 4xx18 = 4xx9xx2 #

# sqrt72 = 4xx18 = 4xx9xx2 = 2 ^ 2xx3 ^ 2xx2 #

# = sqrt (2 ^ 2. 3 ^ 2. 2 #

# = (2) (3) sqrt2 #

# = 6sqrt2 #

Pendekatan yang lebih sederhana.

# sqrt72 = sqrt (36xx2) #

# = sqrt (6 ^ 2xx2) #

# = 6sqrt2 #