1.

Three vector vec(A)=ahat(i)+hat(j)+hat(k) , vec(B)=hat(i)+bhat(j)+hat(k)and vec(C)=hat(i)+hat(j)+chat(k) aremutually perpendicular (hati , hatj and hatk) unit vectors along X,Y and Z axis respectively).The respective values of a,b and c are

Answer»

0,0,0
`-(1)/(2),-(1)/(2),-(1)/(2)`
1,-1,1
`(1)/(2),(1)/(2),(1)/(2)`

ANSWER :B


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