October 2018 2 80 Report
Titik balik maksimum dari f(x) = 3 sin (x+20 ^{o} ) untuk 0 ≤ x ≤ 360 ^{o} adalah....
a. ( 70 ^{o} , 3 )
b. ( 80 ^{o} , 3)
c. ( 90 ^{o} , 3 )
d. (180 ^{o} , 3)
e. ( 150 ^{o} , 3 )
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