State which of the following are mathematical statements and which are

1.	State which of the following are mathematical statements and which are not ? Give reason. i) She has blue eyes.ii) x + 7 = 18iii) Today is not Sunday.iv) For each counting number x, x + 0 = x.v) What tune is it?
Answer» i) This is not a mathematical statement. no mathematics is involved in it. ii) This is not a statement, as its truthness cant be determined. iii) This is not a statement. This is an ambiguous open sentence. iv) This is a mathematical statement. v) This is not a mathematical statement.

State which of the following are mathematical statements and which are not ? Give reason. i) She has blue eyes.ii) x + 7 = 18iii) Today is not Sunday.iv) For each counting number x, x + 0 = x.v) What tune is it?

Answer»

i) This is not a mathematical statement. no mathematics is involved in it.

ii) This is not a statement, as its truthness cant be determined.

iii) This is not a statement. This is an ambiguous open sentence.

iv) This is a mathematical statement.

v) This is not a mathematical statement.