Soal:
(a² + a² + a² + a²)² = 10.000
nilai a = ...
(a² + a² + a² + a²)² = 10.000
nilai a = ...
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
aljabar
(a² + a² + a² + a²)² = 10000
(4a²)² = 100²
atau
(4a²)² = (-100)²
4a² = 100
a² = 25
a = 5 atau a = -5
4a² = -100
a² = -25
a = √-25 atau a = - √-25
a = 5√-1 atau a = -5√-1
a = 5i atau a = -5i
Nilai a :
-5, 5, -5i, 5i
Akar-akar dari 16a^4 = 10000 seharusnya ada 4 akar.