PUC Science Class 11 - Karnataka Board PUC Question Bank Solutions

Find out the sentence are statement and are not. Justify your answer.

 Are all circles round?

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 All triangles have three sides.

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Every rhombus is a square.

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 x² + 5 | x | + 6 = 0 has no real roots.

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 This sentence is a statement.

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Is the earth round?

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 Go !

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 The real number x is less than 2.

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There are 35 days in a month.

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 Mathematics is difficult.

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All real numbers are complex numbers.

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Give three examples of sentences which are not statements. Give reasons for the answers.

Write the negation of the statement:
Banglore is the capital of Karnataka.

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 It rained on July 4, 2005.

Write the negation of the statement:

 Ravish is honest.

Write the negation of the statement:

 The earth is round.

Write the negation of the statement:

All birds sing.

 Some even integers are prime.