Misal,
f(a) = 2a + 1 → f'(a) = 2
f(a - x) = 2 (a - x) + 1
f(a - x) = 2a - 2x + 1
lim (f(a - x) - f(a))/x
x→0
= lim ((2a - 2x + 1) - (2a + 1))/x
= lim (2a - 2x + 1 - 2a - 1)/x
= lim (-2x)/x
= -2
= - f'(a)
Kelas 11
Pelajaran Matematika
Bab 8 Limit
Kata kunci : lim
Kode kategorisasi : 11.2.8
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Verified answer
Misal,
f(a) = 2a + 1 → f'(a) = 2
f(a - x) = 2 (a - x) + 1
f(a - x) = 2a - 2x + 1
lim (f(a - x) - f(a))/x
x→0
= lim ((2a - 2x + 1) - (2a + 1))/x
x→0
= lim (2a - 2x + 1 - 2a - 1)/x
x→0
= lim (-2x)/x
x→0
= -2
= - f'(a)
Kelas 11
Pelajaran Matematika
Bab 8 Limit
Kata kunci : lim
Kode kategorisasi : 11.2.8
Internal link
brainly.co.id/tugas/16094563
#backtoschoolcampaign