Cos(45-a)+cos(45+A)/ sin(45+a)+sin(45-a)
Matematika
tiaramegantari
Pertanyaan
Cos(45-a)+cos(45+A)/ sin(45+a)+sin(45-a)
1 Jawaban
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1. Jawaban hanifah230
cos45cosa-sin45sina+cos45cosa+sin45sina
1/2akar2cosa-1/2akar2sina+1/2akar2cosa+1/2akar2sina
1/2akar2cosa+1/2akar2sina
1/2akar2(cosa+sina)