(tg 45°)^2 + 8(cos 60°)^2 = ......
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(tg 45°)^2 + 8(cos 60°)^2 = ......
1 Jawaban
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1. Jawaban chandraningdyah
Tg45=1
Cos60=1/2
(Tg45)^2=1^2=1
8(cos60)^2=8(1/2)^2=8(1/4)=2
(Tg45)^2+8(cos60)^2= 1+2=3