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Please solve RD Sharma class 12 chapter 22 Algebra of Vectors exercise Fill in the blanks question 1 maths textbook solution

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Answer:- a+b+c=0

Hint:- To solve this equation, we solve this by

Answer:- If  \vec{a}, \vec{b}, \vec{c} represent the side of a triangle taken in order that \vec{a}+\vec{b}+\vec{c}------

Solution:-

\begin{aligned} &\vec{a}+\vec{b}+\vec{c}= \\\\ &=\overrightarrow{A C}+\vec{c} \\\\ &=\overrightarrow{A C}+\overrightarrow{C A} \end{aligned}

\begin{aligned} &=\overrightarrow{A C}-\overrightarrow{A C} \\\\ &=0 \\\\ &\vec{a}+\vec{b}+\vec{c}=0 \end{aligned}

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