Bagaimana Anda menyederhanakan 2 sqrt 3 kali sqrt6?

Menjawab:

# 6sqrt (2) #

Penjelasan:

Mengetahui properti: multiplikasi radikal yang mengatakan:

#sqrt (a * b) = sqrt (a) * sqrt (b) #

# 2sqrt (3) * sqrt (6) #

# = 2sqrt (3 * 6) #

# = 2sqrt (18) #

# = 2sqrt (2 * 3 * 3) #

# = 2 * 3sqrt (2) #

# = 6sqrt (2) #

Bagaimana Anda menyederhanakan dan menulis (4,1 kali 10 ^ 5) (2 kali 10 ^ 7) dalam notasi ilmiah?

(4,1 kali 10 ^ 5) (2 kali 10 ^ 7) = 8.2xx10 ^ 12 (axx10 ^ b) (cxx10 ^ d) = (axxc) (10 ^ bxx10 ^ d) = (ac) (10 ^ (b + d) a = 4.1 c = 2 ac = 8.2 10 ^ (b + d) = 10 ^ (5 + 7) = 10 ^ 12 8.2xx10 ^ 12

Bagaimana Anda menyederhanakan (1 / sqrt (a-1) + sqrt (a + 1)) / (1 / sqrt (a + 1) -1 / sqrt (a-1)) div sqrt (a + 1) / ( (a-1) sqrt (a + 1) - (a + 1) sqrt (a-1)), a> 1?

Pemformatan matematika besar ...> warna (biru) (((1 / sqrt (a-1) + sqrt (a + 1)) / (1 / sqrt (a + 1) -1 / sqrt (a-1)) ) / (sqrt (a + 1) / ((a-1) sqrt (a + 1) - (a + 1) sqrt (a-1))) = warna (merah) (((1 / sqrt (a- 1) + sqrt (a + 1)) / ((sqrt (a-1) -sqrt (a + 1)) / (sqrt (a + 1) cdot sqrt (a-1)))) / (sqrt (a +1) / (sqrt (a-1) cdot sqrt (a-1) cdot sqrt (a + 1) -sqrt (a + 1) cdot sqrt (a + 1) sqrt (a-1))) = warna ( biru) (((1 / sqrt (a-1) + sqrt (a + 1)) / ((sqrt (a-1) -sqrt (a + 1)) / (sqrt (a + 1) cdot sqrt (a -1)))) / (sqrt (a + 1) / (sqrt (a + 1) cdot sqrt (a-1) (sqrt (a-1) -sqrt (a + 1))) = warna (merah) ((1 / sqrt (a-

Bagaimana Anda menyederhanakan (sqrt 3 -sqrt 6) / (sqrt 3 + sqrt6)?

= -3 + 2sqrt (2) Ketika Anda memiliki jumlah dari dua akar kuadrat, triknya adalah mengalikan dengan pengurangan yang setara: (sqrt (3) -sqrt (6)) / (sqrt (3) + sqrt (6) ) = (sqrt (3) -sqrt (6)) / (sqrt (3) + sqrt (6)) * (sqrt (3) -sqrt (6)) / (sqrt (3) -sqrt (6)) = = ((sqrt (3)) ^ 2-2 * sqrt (3) * sqrt (6) + (sqrt (6)) ^ 2) / ((sqrt (3)) ^ 2- (sqrt (6)) ^ 2 = (3-2sqrt (18) +6) / (3-6) = (9-2 * sqrt (9 * 2)) / - 3 = (9-2 * 3sqrt (2)) / - 3 = - 3 + 2sqrt (2)