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1) 2) 3) 4) 5) 6) 7) 8) 9) 10)
- Correct Sentences (True Sentences)
- Incorrect Sentences (False Sentences)
- Open Sentences
Following are the Correct (True) Sentences:1) 2) 3) 4) 5) Following are the Incorrect (False) Sentences:1) 2) 3) 4) 5) Following are the Open Sentences:1) 2) 3) 4) 5) All the above mentioned sentences are such that each one is true for some numerical value but not for all numerical values of variable. For example take . The sentence is true for but not true for any other than 1. Hence the sentences which are true for some numerical values of variable, but not for all, are called open sentences.
In (1), (2) and (3) symbol “=” is used. In other cases the symbol “>” or “<” is used.
The sentences in which symbol “=” is used are called equations e.g. (4), (5) (6) are inequalities. |

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