Diketahui vektor p​=3i−2j​, q​=5i+2j​, dan r=−2i+j​. Tentukan: a. p​+q​+r

Pertanyaan

Diketahui vektor p with rightwards arrow on top equals 3 i with hat on top minus 2 j with hat on top comma space q with rightwards arrow on top equals 5 i with hat on top plus 2 j with hat on top comma space dan space r with rightwards arrow on top equals negative 2 i with hat on top plus j with hat on top. Tentukan:

a. p with rightwards arrow on top plus q with rightwards arrow on top plus r with rightwards arrow on top 

D. Entry

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Jawaban

nilai vektor bold italic p with bold hat on top bold plus bold italic q with bold hat on top bold plus bold italic r with bold hat on top adalah bold 6 bold italic i with bold hat on top bold plus bold italic j with bold hat on top bold. 

Pembahasan

table attributes columnalign right center left columnspacing 0px end attributes row cell p with rightwards arrow on top plus q with rightwards arrow on top plus r with rightwards arrow on top end cell equals cell open parentheses table row 3 row cell negative 2 end cell end table close parentheses plus open parentheses table row 5 row 2 end table close parentheses plus open parentheses table row cell negative 2 end cell row 1 end table close parentheses end cell row blank equals cell open parentheses table row 6 row 1 end table close parentheses end cell row blank equals cell 6 i with hat on top plus j with hat on top end cell end table 

 

Jadi, nilai vektor bold italic p with bold hat on top bold plus bold italic q with bold hat on top bold plus bold italic r with bold hat on top adalah bold 6 bold italic i with bold hat on top bold plus bold italic j with bold hat on top bold. 

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Diketahui vektor x=[56​], y​=[33​], dan z=[76​] b.   Tentukan 2x+31​y​−21​z!

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