Cos 53°xCos 23°+Sin53°xSin23° =
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Cos 53°xCos 23°+Sin53°xSin23° =
1 Jawaban
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1. Jawaban yessyv
cos 53xcos 23 + sin 53xsin23 = cos (53-23)
= cos 30
= 1/2 √3