March 2019 2 8 Report
1. Turunan dari y = cos2 ((x^(2 )+2)/(x^2-2)) adalah....
a. -2 cos((x^(2 )+2)/(x^2-2)) sin ((x^(2 )+2)/(x^2-2))
b. 2((x^(2 )+2)/(x^2-2)) cos((x^(2 )+2)/(x^2-2)) sin ((x^(2 )+2)/(x^2-2))
c. 16x/((x^2 〖-2)〗^2 ) cos((x^(2 )+2)/(x^2-2)) sin ((x^(2 )+2)/(x^2-2))
d. 2((x^(2 )+2)/(x^2-2)) 16x/((x^2 〖-2)〗^2 ) cos((x^(2 )+2)/(x^2-2)) sin ((x^(2 )+2)/(x^2-2))
2. Volume benda yang terbentuk dengan memutar mengelilingi sumbu –x daerah yang dibatasi oleh garis x-2y = 0 dan parabola y^2 = 4x adalah.... satuan volume
a. 512/3 π b. 6561/4 π c. 704/5 π d. 1024/35 π
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