CGPET 2017 Solved Paper

Section: Mathematics

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Question : 138 of 150

Marks: +1, -0

If a=2

^

i

+5

^

j

and b=2

^

i

−

^

j

, then the unit vector along a+b will be

^
i
−
^
j
√2
^
i
+
^
j
√2(
^
i
+
^
j
)
^
i
+
^
j
√2

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