jika f(x)=(x+21)(x-21), maka f'(x)=.....
Matematika
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Pertanyaan
jika f(x)=(x+21)(x-21), maka f'(x)=.....
1 Jawaban
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1. Jawaban senimanastronot
f(x)=(x+21)(x-21)
f(x)=x^2-441
f'(x)=2x