(4) Use vector algebra to answer the following questions. 3 3 5 P= B - R= 2 (a) Compute the vectors QP, OR, PQ, PR, RQ,

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4 Use Vector Algebra To Answer The Following Questions 3 3 5 P B R 2 A Compute The Vectors Qp Or Pq Pr Rq 1 (55.39 KiB) Viewed 62 times

(4) Use vector algebra to answer the following questions. 3 3 5 P= B - R= 2 (a) Compute the vectors QP, OR, PQ, PR, RQ, ŘP. (b) Compute the dot product between each of pairs (QP,ÕR), ([Q, PR), and (RQ, ŘP). (©) Decide whether the angles PQR, QRP, and RPQ are acute, right, or obtuse, respectively. (d) Decide whether the triangle with vertices P, Q, R is right-angled; give an answer (Yes or No) and justify it.