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The sum of two vectors A and B is 5i+j and their difference is 3i-2j . The vector A...

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aaana | Student, Undergraduate | Salutatorian

Posted April 22, 2013 at 8:02 AM via web

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The sum of two vectors A and B is 5i+j and their difference is 3i-2j . The vector A then is ?

a. (8i+j)

b. 2i-5j

c.i-2.5j

d. none

 

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pramodpandey | College Teacher | Valedictorian

Posted April 22, 2013 at 8:53 AM (Answer #1)

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`A+B=5i+j`

`A-B=3i-2j`

`A=4i-(1/2)j`

Ans  D

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aaana | Student, Undergraduate | Salutatorian

Posted May 2, 2013 at 5:20 AM (Answer #3)

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how sir ?

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