Questions

If sin8 θ + cos8 θ – 1 = 0, then what is the value of cos2 θ sin2 θ (If θ ≠ 0 or π/2)?

Which of the following quadratic equations has real roots?

α and β are the roots of the quadratic equation x2 – x – 1 = 0. What is the value of α8 + β8?

Who invented the Centigrade scale?

Kaleidoscope was invented by ________.

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

No parents can __________to see their ward waste their potential.

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Hardly had I stepped(A)/out of my house when(B)/I saw them coming towards my house.(C)/No error(D)

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

He had never been of a ____________ constitution, and after a little more than a week's illness he died.