1.

If \(\begin{array}{l} \overrightarrow a = 2\widehat i - 2\widehat j - \widehat k\\ \end{array}\)and \(\begin{array}{l} \overrightarrow b = 3\widehat i + 2\widehat j + \widehat k\\ \end{array}\)then the projection of \(\begin{array}{l} \overrightarrow b \\ \end{array}\)on \(\begin{array}{l} \overrightarrow a \\ \end{array}\)is

A. \(\begin{array}{l} \frac{1}{3}\\ \end{array}\)
B. 1
C. \(\begin{array}{l} \frac{1}{{\sqrt {14} }}\\ \end{array}\)
D. \(\begin{array}{l} \frac{{11}}{3}\\ \end{array}\)
Answer» B. 1


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