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i and j are unit vectors along x-axis and y-axis respectively. What is the magnitude and direction of vectors i +j and i - j?

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i and j are unit vectors along x-axis and y-axis respectively. What is the magnitude and direction of vectors i +j and i - j?

(a) √2 , 45° ; √2 , – 45° 

(b) 0, 45° ; √2 , 45° 

(c) √2, 45° ; √2, 45° 

(d) √2, 45° ; √2, 135° 

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1 Answer

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Correct option (a) √2 , 45° ; √2 , – 45° 

Explanation:

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