jika f(x) = -x, makaf(x²)+[f(x)]²-2f(x)
Matematika
Wildan11111an
Pertanyaan
jika f(x) = -x, makaf(x²)+[f(x)]²-2f(x)
1 Jawaban
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1. Jawaban SadonoSukirno
f(x²) = -x²
{f(x)}² = (-x)²
{f(x)}² = x²
2(f(x)) = 2(-x) = -2x
maka
= -x² + x² - (-2x)
= 2x