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f(x)= 2x
f(-x) = 2(-x) = - 2x
- f(x)= - (2x) = - 2x
..
b)
f(x)= x^2
f(-x) = (-x)^2 = x^2
- f(x)= - x^2
..
buktinya
f(x)= 2x
f(-x) = 2(-x) = - 2x
- f(x)= - (2x) = - 2x
terbukti
..
b) f(-x) tidak sama dengan - f(x)
pembuktiannya
f(x)= x^2
f(-x) = (-x)^2 = x^2
- f(x)= - x^2
terbukti f(-x) tidak sama dengan -f(x)