CBSE Class 11-science Answered
if |A|=|B|=|A-B|, then find the angle b/w the two vectors
Asked by kaziryan.05 | 13 Apr, 2022, 09:01: PM
Expert Answer
Let 
= 
and 
= 
. Let θ be the angle between the vectors and .
= and = . Let θ be the angle between the vectors and . We can construct 
= ( - ) as shown in figure.
= ( - ) as shown in figure.OSPQ is parallelogram and PQ = | ( - ) |
- ) | As per the given condition , | | = | | = | ( - ) | , all the sides of ΔOPQ are same .
| = | | = | ( - ) | , all the sides of ΔOPQ are same .Hence θ = 60o = ( π / 3 ) rad
Hence angle between and is 60o or ( π / 3 ) rad
and is 60o or ( π / 3 ) rad
Answered by Thiyagarajan K | 13 Apr, 2022, 09:39: PM
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