JEE Main 9 Apr 2019 Paper 2 Solved Paper

Section: Mathematics

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Question : 78 of 90

Marks: +1, -0

If unit vector

→

a

makes angles

π

3

with

^

i

,

π

4

with

^

j

and θ∊(0,π) with

^

k

, then a value of θ is

[9 Apr 2019 Shift 2]

2π
3
5π
6
5π
12
π
4

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