If the sum of two unit vectors is a unit vector, prove that ...

CBSE Class 12 Math 2019 Delhi Set 1 Solved Paper

Question : 10 of 29

Marks: +1, -0

If the sum of two unit vectors is a unit vector, prove that the magnitude of their difference is

{√{3}}

.
OR
If

{a}↖{→}=2 {i}↖{\^}+3 {j}↖{\^}+{k}↖{\^}, {b}↖{→}={i}↖{\^}-2 {j}↖{\^}+{k}↖{\^}

and

{c}↖{→}=-3 {i}↖{\^}+{j}↖{\^}+2 {k}↖{\^}

, find

[{a}↖{→} {b}↖{→} {c}↖{→}]

Solution:

Go to Question:

Prev Question

Next Question