Buku Sukino
Matematika Peminatan
Kelas XII
Kunci Jawaban Try Out Sukino
18. -2∫4(x + 4 - 1/2x2 ) dx = ...
a. 2
b. 18
c. 20 1/3
d. 22
e. 24 1/3
Jawaban : B
-2∫4(x + 4 - 1/2x2 ) dx
-2[1/2 x2 + 4x - 1/6x3+ c]4
= (1/2 (4)2 + 4. (4) - 1/6(4)3+ c) - (1/2 (-2)2 + 4. (-2) - 1/6(-2)3+ c)
= 8 + 16 - 64/6 + c - (2 - 8 + 8/6 + c)
= 24 - 6 - 72/6
= 30 - 12
= 18
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