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Dua titik dan diwakili dengan vektor . Jika dinyatakan dalam bentuk kombinasi linear, ....

Pertanyaan

Dua titik P left parenthesis minus sign 2 comma 7 right parenthesis dan Q left parenthesis 5 comma 3 right parenthesis spacediwakili dengan vektor p with rightwards arrow on top equals PQ with rightwards arrow on top. Jika straight p with rightwards arrow on top dinyatakan dalam bentuk kombinasi linear, p with rightwards arrow on top equals....

  1. 3 i with rightwards arrow on top plus 10 j with rightwards arrow on top

  2. 7 italic i with rightwards arrow on top minus sign 4 italic j with rightwards arrow on top

  3. 3 i with rightwards arrow on top minus 10 j with rightwards arrow on top

  4. negative sign 7 italic i with rightwards arrow on top plus 4 italic j with rightwards arrow on top

  5. 7 italic i with rightwards arrow on top plus 4 italic j with rightwards arrow on top

Pembahasan Soal:

Diketahui dua titik P left parenthesis minus sign 2 comma 7 right parenthesis dan Q left parenthesis 5 comma 3 right parenthesis spacediwakili dengan vektor p with rightwards arrow on top equals PQ with rightwards arrow on top. Diperoleh

table attributes columnalign right center left columnspacing 0px end attributes row cell p with rightwards arrow on top end cell equals cell PQ with rightwards arrow on top end cell row blank equals cell Q with rightwards arrow on top minus sign P with rightwards arrow on top end cell row blank equals cell open parentheses 5 comma 3 close parentheses minus sign open parentheses negative sign 2 comma 7 close parentheses end cell row blank equals cell open parentheses 7 comma minus sign 4 close parentheses end cell end table

Jika straight p with rightwards arrow on top dinyatakan dalam bentuk kombinasi linear, 

p with rightwards arrow on top equals7 italic i with rightwards arrow on top minus sign 4 italic j with rightwards arrow on top

Jadi, jawaban yang tepat adalah B.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 06 Mei 2021

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