1.

If A = 1-Jand B-3i+4j,then the vectorhaving the same magnitude as that of B and parallelto A isi + j)V2

Answer»

For that , vector..

the magnitude should be equal to that of |B| = √4²+3² = 5

and direction should be of A or unit vector of A = (i-j)/√1+1 = (i-j)/√2

so, that vector is = magnitude* direction = 5*(i-j)/√2

option A.



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