If An=(2m)i-(3m)j and Bn=(1m)i-(2m)j then An-2Bn=
Answers
Answered by
5
An=2mi-3mj
Bn=mi-2mj
so
2Bn=2mi-4mj
then
-2Bn=4mj-2mi
plugging in the values
An-2Bn
=2mi-3mj+4mj-2mi
=mj
Answered by
1
j is the right answer bro
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