Bantu jawab yaa terimakasi
Matematika
sahila7
Pertanyaan
Bantu jawab yaa terimakasi
1 Jawaban
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1. Jawaban zahrazahwa
|u + v|=√|u|^2+|v|^2+2.|u|.|v|.cos60
= √49+64+2.7.8(1/2)
=√169
=13