NDA (National Defense Academy) Mathematics: Questions 344 - 349 of 384

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Question number: 344

» Trigonometry » Trigonometrical Ratios

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Appeared in Year: 2012

MCQ▾

Question

What is the maximum value of

Choices

Choice (4)Response

a.

b.

- 1

c.

1

d.

0

Question number: 345

» Matrices and Determinants » Operations on Matrices Determinant of a Matrix

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Appeared in Year: 2012

MCQ▾

Question

The sum and product of matrices exist. Which of the following implication are necessarily true?

  1. are square matrices of same order.
  2. are non-singular matrices.

Select the correct answer using the code given below:

Choices

Choice (4)Response

a.

1 only

b.

2 only

c.

1 and 2

d.

Question number: 346

» Statistics and Probability » Union and Intersection of Events

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MCQ▾

Question

In a city, three daily newspaper are published, read o not read any of the threenewspaper

What is the percentage of persons who read onlyA but neither nor ? (Take )

Choices

Choice (4)Response

a.

23%

b.

33%

c.

21%

d.

Question does not provide sufficient data or is vague

Question number: 347

» Vector Algebra » Magnitude and Direction of a Vector

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MCQ▾

Question

What are the direction ratios of normal to the plane

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

Question number: 348

» Statistics and Probability » Union and Intersection of Events

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MCQ▾

Question

In a city, three daily newspaper are published, read read read A and B; read read o not read any of the thr

What is the percentage of persons who read all the three papers?

Choices

Choice (4)Response

a.

42 %

b.

35 %

c.

20 %

d.

17 %

Question number: 349

» Statistics and Probability » Union and Intersection of Events

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Appeared in Year: 2012

MCQ▾

Question

In a city, three daily newspaper are published, read read read A and B read A and C; o not read any of the thr

What is the percentage of persons who read only two papers? (Take )

Choices

Choice (4)Response

a.

44%

b.

31%

c.

19%

d.

None of the above

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