1 . r3⇀=2i^+4j^-5k^

• A. $\frac{2}{7}\hat{i}+\frac{4}{7}\hat{j}+\frac{5}{7}\hat{k}$
• B. $\frac{1}{7}\hat{i}+\frac{2}{7}\hat{j}+\frac{3}{7}\hat{k}$
• C. $\frac{3}{7}\hat{i}+\frac{6}{7}\hat{j}\frac{2}{7}\hat{k}$
• D. $\frac{3}{5}\hat{i}+\frac{6}{5}\hat{j}\frac{2}{5}\hat{k}$

Answer: Option C

Explanation: