A¯$$=3i^+4j+5k$$ ; B¯$$=i^$$−$$j^$$−$$2k^$$ ; C¯$$=2i^$$−$$3j^$$−$$3k^$$ then |A¯$$+$$ B¯$$+$$ C¯|$$=$$ $$_________$$

|A¯$$+B$$¯$$+C$$¯|$$=$$|$$6i^$$|$$=6$$

Scalars and Vectors

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Question

$\bar{A} = 3 \hat{i} + 4 j + 5 k; \bar{B} = \hat{i} - \hat{j} - 2 \hat{k}; \bar{C} = 2 \hat{i} - 3 \hat{j} - 3 \hat{k}$ then $| \bar{A} + \bar{B} + \bar{C} | =$ _________

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Solution

$| \bar{A} + \bar{B} + \bar{C} | = | 6 \hat{i} | = 6$

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