tugas mtk
m = 20
tolong:)
m = 20
tolong:)
a.
(fog)(x)=(f(g(x))
=(f(2x+3)
=(2x+3)² - 3(2x+3) - 4
= 4x²+12x+9 - 6x+3 - 4
= 4x² + 6x + 8
b.
(gof)(x)=(g(f(x))
= (g(x²-3x-4)
= 2(x²-3x-4)+3
= 2x² - 6x - 8 + 3
= ( 2x² - 6x - 5
c.
(fog)(m)=(f(g(m))
=(f(2m+3)
=(2m+3)² - 3(2m+3) - 4
= 4m²+12m+9 - 6m+3 - 4
= 4m² + 6m + 8
m=(20) = 4(20)² + 6(20) + 8
m =1728
d.
(gof)(m)=(g(f(m))
= (g(m²-3m-4)
= 2(m²-3m-4)+3
= 2m² - 6m - 8 + 3
= 2m² - 6m - 5
m=(20)= 2(20)²-6(20)-5
m = 675
Sekian
Jadiin jawaban terbaik ya :)
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