3i Infotech Placement: Sample Questions 245 - 247 of 1245

Glide to success with Doorsteptutor material for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.

Question 245

Question

MCQ▾

If the sum of the roots of the equation 0 is equal to the sum of the squares of their reciprocals then are in

Choices

Choice (4)

a.

GP

b.

HP

c.

AP

d.

All of the above

Answer

b.

Explanation

  • Consider, be the roots of this equation then,

    … equation 1

  • Now, it is given that sum of roots is equal to square of reciprocal of roots

  • Now putting value of and from equation 1

    … equation 2

  • Now let are in HP then

  • This result is similar to equation
  • Therefore, these terms are in HP.

Question 246

Edit

Describe in Detail

Essay▾

What is the difference between java and C ++

Explanation

Difference between Java and C ++
JavaC ++
No semicolon.End with a semicolon.
Modifiers can be added to each data field or method individually.Divided into major sections by private, protected and public.
Extends to indicate inheritance from a parent class.Class A, B, C, D to indicate inheritance.
Class contains member function implementation.Member function implementation can be external to class.

Question 247

Edit

Write in Short

Short Answer▾

What is the angle between the two hands of a clock when time is 8: 30?

Explanation

Clock showing 8: 30

There is 30 Degree Difference between Five Minutes

So, when the time is 8: 30 we can see from the figure that the angle between two hands of the clock is 75.

Developed by: