Two vectors \overrightarrow{a}=a_1 \stackrel{\^}{i}+a_2 \stackrel{\^}{j}+a_3 \stackrel{\^}{k} and \overrightarrow{b}=b_1 \stackrel{\^}{i}+b_2 \stackrel{\^}{j}+b_3 \stackrel{\^}{k} are collinear if

Correct Answer is : a1b1=a2b2=a3b3

{ {\a}_1}/{ {\b}_1}= { {\a}_2}/{ {\b}_2}= { {\a}_3}/{ {\b}_3}

{\a}_1= {\b}_1, {\a}_2= {\b}_2, {\a}_3= {\b}_3

CBSE Class 12 Math 2023 Delhi Set 1 Solved Paper - Question 13

Question : 13 of 38

Marks: +1, -0

Two vectors

{a}↖{→}=a_1 {i}↖{\^}+a_2 {j}↖{\^}+a_3 {k}↖{\^}

and

{b}↖{→}=b_1 {i}↖{\^}+b_2 {j}↖{\^}+b_3 {k}↖{\^}

are collinear if

Solution:

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