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Ask iit jee aieee pet cbse icse state board experts Expert Question: An easy problem on vectors.................
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nano0101 (44)

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i and j are vectors along x and y axis resp. What are the components of vector
A = 2i + 3j along the directions of i+j and i - j ..................

In the process of learnin..............blunders do happen !!!
    
nano0101 (44)

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hehe this is already asked !! 

In the process of learnin..............blunders do happen !!!
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Himanshu_Mohan (80)

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just take dot product n divide by moduli;

for component of x on y: comp=|x.y| / |y|

on i+j : (2+3)/root2 = 5/root 2

on i-j : (2-3)/root2 = 1/root2

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Himanshu_Mohan (80)

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the dir. of da projections will b in dir. of i+j and j-i resp.

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