1.

A vector bara of magnitude 50 is collinear with the vector 6bari -8barj-15/2bark and making an obtuse angle with Z-axis is

Answer»

`24bari-32barj-30bark`
`-24bari+32barj+30bark`
`24bari+32barj-30bark`
`-24bari-32barj+30bark`

ANSWER :A


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