SSC CHSL 4 Mar 2018 Shift 1 Paper

Section: General Awareness

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Question : 99 of 100

Marks: +1, -0

∆XYZ is right angled at Y. If m∠X = 60°, then find the value of

(\secZ + 2\/√3)

$4\/√3$
$(√2+2)\/2√2$
$7\/2√3$
$4\/2√3$

Solution:

Sum of angles of

△XYZ= ∠X + ∠Y + ∠Z = 180°

⇒

60 °+ 90 ° + ∠Z = 180 °

⇒

∠Z = 180 ° − 150°= 30°

To find :

(\secZ + 2/√3)

=

sec(30°) +2/√ 3

=

2/√3 + 2/√ 3 = 4/√3

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