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The angle between the two vectors A=5i^+5j^and  B=5i^5j^ will be

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a
Zero
b
450
c
900
d
1800

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detailed solution

Correct option is C

A→.B→ = 0   ∴ θ = 900


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Find the dot product of A=i^+j^ and B=2i^-3j^+4k^ 


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