1. The angle between i + j and i- j is
a) 40°
b) 90°
C) -45°
d) 180°
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1. The angle between i + j and i- j is
a) 40°
b) 90°
C) -45°
d) 180°
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Answer:
b) 180 degree .........
Answer:
d) 180° is the right answer
Explanation:
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