1
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Read the following information carefully and answer the questions given below.

Consider the functions f(x) = xg(x) and g(x) = $$\left[ {{1 \over x}} \right]$$, where [ . ] is the greatest integer function.
What is $$\int_{1/3}^{1/2} {g(x)\,dx} $$ equal to ?
A
$${1 \over 6}$$
B
$${1 \over 3}$$
C
$${5 \over 18}$$
D
$${5 \over 36}$$
2
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Read the following information carefully and answer the questions given below.

Consider the functions f(x) = xg(x) and g(x) = $$\left[ {{1 \over x}} \right]$$, where [ . ] is the greatest integer function.
What is $$\int_{1/3}^1 {f(x)} \,dx$$ equal to ?
A
$${{37} \over {72}}$$
B
$${2 \over 3}$$
C
$${17 \over 72}$$
D
$${37 \over 144}$$
3
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Read the following information carefully and answer the questions given below.

Given that, $${a_n} = \int_0^\pi {{{{{\sin }^2}\{ (n + 1)x\} } \over {\sin 2x}}dx} $$
Consider the following statements

1. The sequence $$\{ {a_{2n}}\} $$ is in AP with common difference zero.

2. The sequence $$\{ {a_{2n + 1}}\} $$ is in AP with common difference zero.

Which of the above statements is/are correct?
A
Only 1
B
Only 2
C
Both 1 and 2
D
Neither 1 nor 2
4
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Read the following information carefully and answer the questions given below.

Given that, $${a_n} = \int_0^\pi {{{{{\sin }^2}\{ (n + 1)x\} } \over {\sin 2x}}dx} $$
What is $${a_{n - 1}} - {a_{n - 4}}$$ equal to ?
A
$$-$$1
B
0
C
1
D
2
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