Check sibling questions

The position vectors of the vertices P,Q and R of βˆ†PQR are -iΒ Μ‚+2jΒ Μ‚+4kΒ Μ‚,Β  3iΒ Μ‚+6jΒ Μ‚+8kΒ Μ‚ and 4iΒ Μ‚+jΒ Μ‚+kΒ Μ‚Β  Β respectively.

Which of the following is the vector that represents the median (PS) ?

A. 7/2 iΒ Μ‚+9/2 jΒ Μ‚+9/2 kΒ Μ‚

B. 2iΒ Μ‚+3jΒ Μ‚+13/3 kΒ Μ‚

C. 9/2 iΒ Μ‚+3/2 jΒ Μ‚+1/2 kΒ Μ‚

D. -1/2 iΒ Μ‚+5/2 jΒ Μ‚+7/2 kΒ Μ‚

Β 

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Transcript

The position vectors of the vertices P,Q and R of βˆ†π‘ƒπ‘„π‘… are βˆ’π‘– Μ‚+2𝑗 Μ‚+4π‘˜ Μ‚, 3𝑖 Μ‚+6𝑗 Μ‚+8π‘˜ Μ‚ and 4𝑖 Μ‚+𝑗 Μ‚+π‘˜ Μ‚ respectively. Which of the following is the vector that represents the median (𝑃𝑆) βƒ— ? A. 7/2 𝑖 Μ‚+9/2 𝑗 Μ‚+9/2 π‘˜ Μ‚ B. 2𝑖 Μ‚+3𝑗 Μ‚+13/3 π‘˜ Μ‚ C. 9/2 𝑖 Μ‚+3/2 𝑗 Μ‚+1/2 π‘˜ Μ‚ D. βˆ’1/2 𝑖 Μ‚+5/2 𝑗 Μ‚+7/2 π‘˜ Μ‚

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.