Given that A= B. What is the angle between (A+B)
and (A-B) ?
(1) 30°
(3) 900
(2) 60°
(4) 180°
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Answer is 90°. View the image for solution.
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sakshi26062002:
but answer is not correct
Correct answer is 90°. I am absolutely sure about it. It is the question from the book of Resonance.
sorry you are right
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