Quantitative Aptitude Q & A
for SSC CGL Mains/FCI Exam Practice Set-13:
The list of practice Aptitude
Questions with Answers from trigonometry with Formula for SSC CGL Mains / FCI
Exams were given here, candidates those who are preparing for the examination
can use this practice questions.
1).Find the value of [tan60°+sec45°+sin90°] /
[sin60°+cos0°+tan30°]
a)
[2√3(√3+√2+1)] / [5+2√3]
b)
2√3(√3+√2+1)
c)
5+2√5
d)
(5+2√3)2√3
2). In a triangle if
cos θ =4/5, then tan θ
a)
4/5
b)
3/4
c)
3/5
d)
4/5
3).If tan A=7 / 24, Find cos A.
a)
24/25
b)
7/25
c)
7/24
d)
None of these
4).If ∠A=30°, then the value of tan2A.
a)
√2
b)
√5
c)
√3
d)
1/√3
5).If ∠A=30
, find the value of cos 2A-1.
a)
1
b)
1/2
c)
2/3
d)
-1/2
6).Find the value of sin30 cos60+cos30 sin60
a)
1
b)
2
c)
3
d)
√3
7).If { [tan45+sin90] / cos0 } =x, then the
value of x is
a)
1
b)
2
c)
√3
d)
√6
8).Find the value of sin4θ +cos4θ+2sin2θ.cos2θ
a)
2
b)
1/√3
c)
1
d)
0
9).Find the value of 1 + tan230.
a)
4/3
b)
2/3
c)
1/√3
d)
√3/2
10).Find the value of sin225 + cos265
a)
1/2
b)
√3/2
c)
1
d)
√3/4
Answers:
1).
a) 2). b) 3).
a) 4). c) 5).
d) 6). a) 7).
b) 8). c) 9).
a) 10). c)
Trigonometry
Formula:
1. sin θ = opposite side / hypotenuse
2. cos θ = adjacent side / hypotenuse
3. tan θ = opposite side / adjacent side
4. tan θ = sin θ / cos θ
Value
of Angles:
Angle θ
|
0°
|
30°
|
45°
|
60°
|
90°
|
Sin θ
|
0
|
½
|
½
|
3/2
|
1
|
Cos θ
|
1
|
3/2
|
½
|
½
|
0
|
Tan θ
|
0
|
1/3
|
1
|
3
|
∞
|
4. sin (90-θ) = cos θ; cos (90-θ) = sin θ
5. sin2 θ+cos2 θ = 1
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