Q.

The resultant C→ of A→ and B→ is perpendicular to A→. Also, |A→|=|C→|. The angle between A→ and B→ is

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a

π4rad

b

3π4rad

c

5π4rad

d

7π4rad

answer is B.

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Detailed Solution

tan⁡θ′=CA=1⇒ θ′=45∘=π4          θ=π−π4=3π4
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Best Books for NEET
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