Bantuin jawab nomor 2 dong please
Matematika
Dina1228
Pertanyaan
Bantuin jawab nomor 2 dong please
1 Jawaban
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1. Jawaban GayuhTR
theta=x
(cosx-sinx)^2+2sinxcosx
cos^2x-2sinxcosx+sin^2x+2sinxcosx
cos^2x+sin^2x=1