Exams

If x = a cosθ+ b sinθ and y = b cosθ- a sinθ, then x2 + y2 is equal to

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

An ideal policeman is a myth. You come __________ him only in crime fiction. ____________ elusive is 'good policing', an idea ___________ even the best of criminal justice thinkers have found it difficult to define. This is why, in what is a chaotic world, we have to reluctantly _____________ for an imperfect policeman and ________ inadequate system.

____________ elusive is 'good policing',

Equinox occurs when the sun is vertically above .....

Where was paper invented?

Which of the following questions is a statistical question?

Pipes A and B, when working together, can fill an empty tank in 8 hours. If B is stopped after 2 hours, it will take a total of 11 hrs to fill the tank. How long would it take A to fill the empty tank alone?

As of February 2018, who is the Indian-born CEO of the Nokia company?

What is the least number that should be added to the product 11 x 12 x 13 x 14 to make it a perfect square?