nilai cos^2 45° + 2 cos 60° + sin2 45° =
Matematika
sarikun2
Pertanyaan
nilai cos^2 45° + 2 cos 60° + sin2 45° =
1 Jawaban
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1. Jawaban idznizhahrina
Sin²x+cos²x=1
Cos²45+sin²45+2cos60
=1+2(1/2)
=1+1
=2