Anthony Has Added the Vectors Listed Below and Gotten the Result

question 19

Multiple Choice

Anthony has added the vectors listed below and gotten the result $\overrightarrow { \mathbf { R } } = 9 \hat { \mathbf { i } } + 4 \hat { \mathbf { j } } + 6 \hat { \mathbf { k } }$ .What errors has he made? $\overrightarrow { \mathbf { A } } = 3 \tilde { \mathbf { i } } + 4 \tilde{ \mathbf { j } } - 5 \tilde { \mathbf { k } }$ $\overrightarrow { \mathbf { B } } = - 3 \hat { \mathbf { i } } + 2 \hat { \mathbf { j } } + 8 \hat { \mathbf { k } }$ $\overrightarrow { \mathbf { C } } = 3 \hat { \mathbf { i } } - 2 \hat { \mathbf { j } } + 2 \hat { \mathbf { k } }$

• A)He lost the minus sign in vector \(\vec { B }\) .
• B)He read the \(2 \tilde { \mathbf { k } }\) in \(\overrightarrow { \mathrm { C } }\) as \(3 \tilde { \mathbf { k } }\) .
• C)He lost the minus sign in vector \(\overrightarrow { \mathrm { A } }\) .
• D)All of the above are correct.
• E)Only (a)and (b)above are correct.

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