Q24 of 36 Page 1

For three non-zero vectors prove

OR


If and || = 3, || = 5 and || = 7, then find the value of


Given: Three non-zero vectors


To Prove:




[as ]







[Proved]


OR


Given: and || = 3, || = 5 and || = 7


To Find:


= 0


Now,



=


=


=


So,


⇒


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