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If vec ra n d vec s are non-zero const...

If ` vec ra n d vec s` are non-zero constant vectors and the scalar `b` is chosen such that `| vec r+b vec s|` is minimum, then the value of `|b vec s|^2+| vec r+b vec s|^2` is equal to a.`2| vec r|^2` b. `| vec r|^2//2` c. `3| vec r""|^2` d. `|r|^2`

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CENGAGE ENGLISH-VECTOR ALGEBRA-All Questions
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