Matematika

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Tolong bantuu 2 soal mtk
Tolong bantuu 2 soal mtk

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  • sinA=3/5
    cosB=√5/3
    sin(A-B)=sinAcosB-cosAsinB
    sin(A-B)=4/5*√5/3-3/5*2/3=4√5/15-2/5
    4√5/15-6/15=

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