Q14 of 45 Page 1

If two vectors vector 9 and vector b are such that | vector a| = 2 , | vector b| = 1 and vector a vector b = 1 then find the value of ( 3 vector a-5 vector b ) ( 2 vector a+7 vector b )

Given, and

To Find: Find the value of


Explanation: We have




Where, and



=24 + 11 - 35



Hence, Find the value of


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