Ex 10.2, 7 - Chapter 10 Class 12 Vector Algebra (Important Question)

Last updated at Dec. 16, 2024 by

Ex 10.2, 7 - Ex 10.2

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Ex 10.2, 7 Find the unit vector in the direction of the vector 𝑎 ⃗ = 𝑖 ̂ + 𝑗 ̂ + 2𝑘 ̂ 𝑎 ⃗ = 𝑖 ̂ + 𝑗 ̂ + 2𝑘 ̂, = 1𝑖 ̂ + 1𝑗 ̂ + 2𝑘 ̂, Magnitude of 𝑎 ⃗ = √(12+12+22) |𝑎 ⃗ | = √(1+1+4) = √6 Unit vector in direction of 𝑎 ⃗ = 𝟏/|𝒂 ⃗ | . 𝒂 ⃗ 𝑎 ̂ = 1/√6 ["1" 𝑖 ̂" + 1" 𝑗 ̂" + 2" 𝑘 ̂ ] 𝑎 ̂ = 𝟏/√𝟔 𝒊 ̂ + 𝟏/√𝟔 𝒋 ̂ + 𝟐/√𝟔 𝒌 ̂

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo