Ako zjednodušíte sqrt (9x ^ 2) / sqrt (18y ^ 2)?

Ako zjednodušíte sqrt (9x ^ 2) / sqrt (18y ^ 2)?
Anonim

odpoveď:

# X / (sqrt (2) y) #

vysvetlenie:

#sqrt (9x ^ 2) / sqrt (18y ^ 2) #

# Sqrt9 = 3 #

#sqrt (x ^ 2) = x #

# Sqrt18 = sqrt (9xx2) = 3sqrt2 #

#sqrt (y ^ 2) = y #

teda

#sqrt (9x ^ 2) / sqrt (18y ^ 2) = (3x) / (3sqrt (2) y) #=# X / (sqrt (2) y) #