Trignometry SSC CHSL Questions

Trignometry

Trignometry MCQ Questions

1.

If cosec θ =\(\frac{\sqrt{5}}{2}\) , then what will be the value of (sec θ + tan θ − cot θ sin θ)?


SSC CHSL 2021-12.04.2021-1
A.

\(2 + \frac{4\sqrt{5}}{5}\)

B.

\(2 + \sqrt{5}\)

C.

\(2 + \frac{\sqrt{5}}{2}\)

D.

\(2 + \frac{2\sqrt{5}}{5}\)

ANSWER :

A. \(2 + \frac{4\sqrt{5}}{5}\)

2.

If 8 sin2θ + 2 cos θ = 5, 0° < θ < 90°, then the value of tan2θ + sec2θ − sin2 θ will be:


SSC CHSL 2021-12.04.2021-1
A.

\(\frac{305}{144}\)

B.

\(\frac{431}{144}\)

C.

\(\frac{23}{9}\)

D.

\(\frac{153}{72}\)

ANSWER :

A. \(\frac{305}{144}\)

3.

If 3cot2x - 7 cosec2x + 7 = 0, then the value of x (0° ≤ x ≤ 90°) is:


SSC CHSL 2021-12.04.2021-2
A.

30°

B.

0°

C.

90°

D.

60°

ANSWER :

C. 90°

4.
AB and AC are tangents to a circle with centre O from an external point A. The tangents AB and AC touch the circle at B and C, respectively, such that ∠BAC = 118°. Find the measure of ∠OCB.
SSC CHSL 2021-12.04.2021-2
A.
59°
B.
62°
C.
60°
D.
54°
ANSWER :
A. 59°
5.

What is the value of sin2 60° + tan2 45° + sec2 45° − cosec2 30°?


SSC CHSL 2021-12.04.2021-2
A.

4

B.

\(\frac{1}{4}\)

C.

\(-\frac{1}{4}\)

D.

\(-4\)

ANSWER :

C. \(-\frac{1}{4}\)

6.

If 2 tan x + 3 cot x = 5, then the value of 4 tan2 x + 9 cot2 x is:


SSC CHSL 2021-12.04.2021-2
A.

11

B.

15

C.

17

D.

13

ANSWER :

D. 13