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physics homework help vectors?
if a vector B is added to vector A the result is 6i^+1j^ .if B is subtracted from A ,the result is -4i^+7j^.what is the magnitude of vector A?
Update:
pleez if u can give the detailed solution!
i shall be thankful
Update 2:
how did u get a and b!
1 Answer
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- Anonymous1 decade agoFavorite Answer
a is i+4j and b is 5i-3j magnitude is the square root of i^2+j^2 so its square root of 16+1, or square root of 17
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