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CBSE Class 12 Math 2012 Solved Paper

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Question : 9 of 29
Marks: +1, -0
Find the sum of the following vectors:
a = i^2j^ , b = 2i^3j^ , c = 2i^+3k^
Solution:  
Sum of the vectors,
a + b + c = (i^2j^) + (2i^3j^) + (2i^+3k^)
= 5i^5j^+3k^
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