Selesaikan merasionalkan penyebut 1- 2 / 2- 2?

Jawapan:

jawapan

# (1-3sqrt2) / 2 #

Penjelasan:

tunjukkan di bawah

# (1-sqrt2) / 2-sqrt2 / 1 #

# (1-sqrt2) / 2- (2 * sqrt2) / (2 * 1) #

# 1-sqrt2-2sqrt2 / 2 #

# (1-3sqrt2) / 2 #

Jawapan:

#color (hijau) (=> -sqrt2 / 2 #

Penjelasan:

# (1 - sqrt2) / (2 - sqrt2) #

# => ((1 - sqrt2) * (2 + sqrt2)) / ((2 - sqrt2) * (2 + sqrt2)), "Multiply and divide by:" (2 + sqrt2)

# => (2 - 2 sqrt2 + sqrt2 - 2) / (4 - 2) #

#color (hijau) (=> -sqrt2 / 2 #