Jawapan:
Penjelasan:
Apabila anda membiak akar, maka persamaan itu boleh menjadi
tetapi kita boleh mengambil 3, menjadikannya
Jawapan:
Penjelasan:
# "menggunakan" undang-undang radikal "warna (biru)" # "
# • warna (putih) (x) sqrtaxxsqrtbhArrsqrt (ab) #
# rArrsqrt3xx3xxsqrt21 = 3xxsqrt (3xx21) = 3sqrt63 #
# 3sqrt63 = 3 (sqrt (9xx7)) = 3 (sqrt9xxsqrt7) = 3 (3sqrt7) = 9sqrt7 #
Bagaimana anda mempermudah (sqrt5) / (sqrt5-sqrt3)?
(5 + sqrt (15)) / 2 => sqrt (5) / (sqrt (5) - sqrt (3)) Multiply and divide by (sqrt (5) (sqrt (5) - sqrt (3)) × (sqrt (5) + sqrt (3)) / (sqrt (5) + sqrt (3) =) (Sqrt (5) (sqrt (5) + sqrt (3))) (/ ((sqrt (5) - sqrt (3) (2) (2) (2) (2) (2) (a) (5) sqrt (5) + sqrt (5) sqrt (3)) / (5 - 3) => (5 + sqrt (15)
Bagaimana anda mempermudah 9sqrt4 - 6sqrt24 + sqrt36?
= 18 - 12sqrt (6) + 6 = 24 - 12sqrt (6) ~~ 24 - 12 (2.449) ~~ 24 - 29.393 ~~ -5.393 sqrt (4) ialah 2 sqrt (36) ialah 6 6sqrt (24) 6 sqrt (6xx4) = 6sqrt (4) sqrt (6) = 12sqrt (6)
Bagaimana anda mempermudah sqrt18 / sqrt3?
Mengetahui bahawa sqrt A / sqrt B = sqrt (A / B) maka sqrt 18 / sqrt 3 = sqrt (18/3) = sqrt 6