cos45°cos30°+sin45°sin60°
Matematika
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Pertanyaan
cos45°cos30°+sin45°sin60°
1 Jawaban
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1. Jawaban ibrahimpataudi89
cos45.cos30+sin45.sin60÷tan30.tan60
=0,7×0,8+0,7×0,8÷0,5×1,7
=1,3