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≫
Arithmetic Aptitute
≫
Trigonometry
≫
Page 2
11.
The value of cot 10° . cot 20° . cot 60° . cot 70° . cot 80° is:
A.
1
B.
−1
C.
1√3
D.
1
/
√3
View Answer
12.
If θ be an acute angle and 7 sin
2
θ + 3 cos
2
θ = 4, then the value of tanθ is:
A.
√3
B.
1
/
√3
C.
1
D.
0
View Answer
13.
The value of sin
2
1° + sin
2
5° + sin
2
9° + ............. + sin
2
89° is:
A.
11
1
/
2
B.
11√2
C.
11
D.
11
/
√2
View Answer
14.
The numerical value of cot18° (cot72° cos
2
22° +
1
/
tan72° sec
2
68°
) is
A.
1
B.
√2
C.
3
D.
1
/
√3
View Answer
15.
If tan 15° = 2 − √3, the value of tan 15° cot 75° + tan 75° cot 15° is :
A.
14
B.
12
C.
10
D.
8
View Answer
16.
sin
2
5° + sin
2
6° + ......... + sin
2
84° + sin
2
85° = ?
A.
39
1
/
2
B.
40
1
/
2
C.
40
D.
39
1
/
√2
View Answer
17.
sin
2
5° + sin
2
10° + sin
2
15° ......... + sin
2
85° + sin
2
90° = ?
A.
7
1
/
2
B.
8
1
/
2
C.
9
D.
9
1
/
2
View Answer
18.
The value of
sin39°
/
cos51°
+ 2 tan 11° tan 31° tan 45° tan 59° − 3(sin
2
21° + sin
2
69°) is:
A.
2
B.
−1
C.
1
D.
0
View Answer
19.
If
cos
2
θ
/
cot
2
θ − cos
2
θ
= 3 and 0° < θ < 90°, then the value of θ is:
A.
30°
B.
45°
C.
60°
D.
None of these
View Answer
20.
If sin 17° =
x
/
y
, then the value of (sec 17° − sin 73° ) is:
A.
y
2
/
x√(y
2
− x
2
)
B.
x
2
/
y√(y
2
− x
2
)
C.
x
2
/
y√(x
2
− y
2
)
D.
y
2
/
x√(x
2
− y
2
)
View Answer
1
2
3
4
5
6
Arithmetic Aptitute
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Percentage
Average
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