1
NDA 2017 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Match List-I with List-II and select the correct answer using the code given below the lists

Image

A
A B C D
2 3 1 4
B
A B C D
2 3 4 1
C
A B C D
3 2 1 4
D
A B C D
3 2 4 1
2
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
If $$\sin A = {3 \over 5}$$, where $$450^\circ < A < 540^\circ $$, then $$\cos {A \over 2}$$ is equal to
A
$${1 \over {\sqrt {10} }}$$
B
$$ - \sqrt {{3 \over {10}}} $$
C
$${{\sqrt 3 } \over {\sqrt {10} }}$$
D
None of these
3
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
What is $${1 \over {\sin 10^\circ }} - {{\sqrt 3 } \over {\cos 10^\circ }}$$ equal to?
A
0
B
1
C
2
D
4
4
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
The maximum value of $$\sin \left( {x + {\pi \over 6}} \right) + \cos \left( {x + {\pi \over 6}} \right)$$ in the interval $$\left( {0,{\pi \over 2}} \right)$$ is attained at
A
$${\pi \over {12}}$$
B
$${\pi \over 6}$$
C
$${\pi \over 3}$$
D
$${\pi \over 2}$$
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