Vector Algebra — Mathematics

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Question 1
EasyJEE

Themagnitudeofthevectori+jis:The magnitude of the vector i + j is:

A. √2
B. 2
C. 1
D. 0
Question 2
EasyJEE

Ifa=2i+3jandb=i−j,thena+b=If a = 2i + 3j and b = i - j, then a + b =

A. 3i+2j3i + 2j
B. 3i+4j3i + 4j
C. i+4ji + 4j
D. i+2ji + 2j
Question 3
EasyJEE

The dot product of iandji and j is:

A. 0
B. 1
C. −1-1
D. √2

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