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Questions  >>  CBSE XII  >>  Math  >>  Vector Algebra
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If $\overrightarrow a$ and $ \overrightarrow b$ are two collinear vectors, then which of the following are incorrect:

\[ \begin{array}{l} (A) \quad \overrightarrow b = λ \overrightarrow a, \text{ for some scalar } λ \\(B) \quad \overrightarrow a = ± \overrightarrow b \\(C) \quad \text{the respective components of}\; \overrightarrow a\; and\; \overrightarrow b \text{ are not proportional} \\ (D) \quad \text{ both the vectors } \overrightarrow a\; and\; \overrightarrow b \text{ have same direction, but different magnitudes.} \end{array} \]

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