jika cos x = 0.6 maka nilai cos 3x + cos x =..... tolong bantu perlu!!!!!
Matematika
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Pertanyaan
jika cos x = 0.6 maka nilai cos 3x + cos x =.....
tolong bantu perlu!!!!!
tolong bantu perlu!!!!!
1 Jawaban
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1. Jawaban ikhlasulamal21
cos x = 0.6
cos 3x + cos x = ...
cos 3x +cos ×
= cos 3( 0.6) + 0.6
= cos 1.8 + 0.6
= cos 2.4