The components of a vector $a$ along and perpendicular to the non-zero vector $b$ are respectively:
- A$\frac{a \cdot b}{|a|}, \frac{|a \times b|}{|a|}$
- B$\frac{a \cdot b}{|b|}, \frac{|a \times b|}{|b|}$
- C$\frac{a \cdot b}{|a|}, \frac{a \cdot b}{|a|}$
- D$\frac{|a \times b|}{|a|}, \frac{|a \times b|}{|b|}$
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