March 2019 2 143 Report
1. Diketahui IaI = √2 , IbI = √9 , Ia + bI = √5 . Besar sudut antara vektor a dan vektor b adalah...

2. Jika w adalah vektor proyeksi orthogonal dari vektor v = (2 , -3 , 4) terhadap vektor u = (-1 , 2 , -1) , maka w = ....

Mohon Bantuannya kk" sekalian... :D
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