RRB NTPC Mains or Stage 2 Model Paper 10 with solutions

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Question : 33 of 120

Marks: +1, -0

If cos θ>

1 /2

in the first quadrant, which one of the following is correct?

θ3 < $π/3$
θ> $π /3$
θ < $π/6$
θ > $π /6$

Solution:

(a) cos θ >

1/2

means the value of θ lies
between 0° and

π/3.

∴θ is less than or equal to

π/3

, i.e.,θ<

π/3

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