UPSC NDA Math Model Paper 4

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Question : 93 of 120

Marks: +1, -0

If θ is the angle between the vectors 4(

^

i

−

^

k

) and

^

i

+

^

j

+

^

k

, then what is (sin‌θ+cos‌θ) equal to?

0
1
2
1
2

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