Physics, asked by ibrahimafridi, 1 year ago

If An=(2m)i-(3m)j and Bn=(1m)i-(2m)j then An-2Bn=

Answers

Answered by PSN03

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 surJk

1

j is the right answer bro

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