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[" Q.12"quad " If a unit vector is repre...

[" Q.12"quad " If a unit vector is represented by "0.5hat i+0.8hat j+ck," then the value of 'c' may be: "],[[" (A) "1," (B) "sqrt(0.11)],[" (C) "sqrt(0.01)," (D) "sqrt(0.39)," (E) Do not wish to answer "]]

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