Jika 2 cos x = akar 2 di kwadran III, x= ...
Matematika
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Pertanyaan
Jika 2 cos x = akar 2 di kwadran III, x= ...
1 Jawaban
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1. Jawaban smilefrogface
2cosx = √2
cosx = √2/2
x = 180+ 45 = 225