diketahui a = 4 b = 2 c = 3 maka nilai cos @ ...
Matematika
aal72
Pertanyaan
diketahui a = 4 b = 2 c = 3 maka nilai cos @ ...
2 Jawaban
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1. Jawaban anandapoetri
cos = x/y = 4/2 = 2. Maaf kalau salah -
2. Jawaban ariza10
a^2 = b^2 +c^2 -2.b.c.cos@
4^2 = 2^2 +3^2 - 2.2.3.cos@
16=4+9-12cos@
16=13-12cos@
16-13=-12cos@
3=-12cos@
3/-12=cos@
-1/4=cos@