2cos(2x-60)=akar 3 Brapa nilai x??
Matematika
muhammadsonny
Pertanyaan
2cos(2x-60)=akar 3
Brapa nilai x??
Brapa nilai x??
1 Jawaban
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1. Jawaban adryanta
2 cos (n) = √3
cos (n) = 1/2 √3 (dibagi 2)
n = 30, 210
2x-60 = 30
2x = 90
x = 45 derajat