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Question
If P =`|(2,9),(5,7)|` and Q = `|(7,3),(4,1)|` find 2Q - P
Sum
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Solution
`= |(2,9),(5 , 7)|_(2 xx 2)` , Q = `|(7 , 3),(4 , 1)|_(2 xx 2)`
2Q - P = `|(14 , 6),(8 , 2)| - |(2 , 9),(5 , 7)|`
`= |(14-2 , 6 - 9),(8 - 5 , 2 - 7)| = |(12 - 3),(3 - 5)|_(2 xx 2)`
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