Problem Math 22 Level : Sedang Jika x + 1/x = 4 Maka x² + 1/x² = #Selamatmengerjakan #Nospam #16-04-2017
Matematika
EdiHeaven
Pertanyaan
Problem Math 22
Level : Sedang
Jika x + 1/x = 4 Maka x² + 1/x² =
#Selamatmengerjakan
#Nospam
#16-04-2017
Level : Sedang
Jika x + 1/x = 4 Maka x² + 1/x² =
#Selamatmengerjakan
#Nospam
#16-04-2017
2 Jawaban
-
1. Jawaban prianandalbs
x + 1/x = 4
(x + 1/x)² = 4²
x² + 1/x² + 2 = 16
x² + 1/x² = 14 -
2. Jawaban dewa251202
x^2 + 1/x^2
= (x + 1/x)(x + 1/x) - 2
= (4)(4) - 2
= 16 - 2
= 14