Recent questions tagged mathematical reasoning

+3 votes

1 answer

Find the reciprocal ratio of: (i) 5 : 8 (ii) x/3 ∶ y/7

asked Apr 6, 2019 in Mathematics by kratos

+2 votes

1 answer

The Boolean expression ((p ∧ q) ∨ (p ∨ ~q)) ∨ (~ p ∧ ~q) is equivalent to :

asked Apr 4, 2019 in Mathematics by kratos

+3 votes

1 answer

What is me natural dysfunction

asked Apr 4, 2019 in Mathematics by kratos

+1 vote

1 answer

Write the negative on the following simple statements. (i) The number 17 is prime.

asked Mar 31, 2019 in Mathematics by kratos

+1 vote

1 answer

State whether the following statements are true or false. In case a statement is false, write the corrected statement in your notebook.

asked Mar 28, 2019 in Mathematics by kratos

+1 vote

1 answer

Identify the quantifier in the following statements and write the negation of the statements. (i) There exists a number which is equal to its square.

asked Mar 28, 2019 in Mathematics by kratos

+2 votes

1 answer

Statement-I: Taj Mahal of Agra is in danger by the emissions of Mathura oil refinery. Statement-II: Mathura oil refinery emits SO2 gas in nature.

asked Mar 26, 2019 in Mathematics by kratos

+1 vote

1 answer

Which of the following is the conditional p → q? (a) q is sufficient for p

asked Mar 23, 2019 in Mathematics by kratos

+1 vote

1 answer

The negation of the statement “The product of 3 and 4 is 9” is (a) it is false that the product of 3 and 4 is 9

asked Mar 16, 2019 in Mathematics by kratos

+3 votes

1 answer

State whether ‘or’ used in the following statements is exclusive or inclusive. (i) Sun rises or moon sets

asked Mar 15, 2019 in Mathematics by kratos

+3 votes

1 answer

Check whether the following pair of statements are negation of each other. Give reasons for your answer.

asked Mar 14, 2019 in Mathematics by kratos

+3 votes

1 answer

Find the mean deviation about the mean for the data 38, 70, 48, 40, 42, 55, 63, 46, 54, 44

asked Mar 14, 2019 in Mathematics by kratos

+2 votes

1 answer

Write the negation of the following statements: (i) p: For every positive real number x, the number x – 1 is also positive.

asked Mar 10, 2019 in Mathematics by kratos

+3 votes

1 answer

Let p be the statement "x is an irrational number", q be the statement "y is a transcendental number" and r be the statement "x is a rational number,

asked Mar 9, 2019 in Mathematics by kratos

+2 votes

1 answer

Find the component statements of the following compound statements and check whether they are true or false.

asked Mar 9, 2019 in Mathematics by kratos

+3 votes

1 answer

(p Λ ∼q) Λ (∼p Λ q) is (a) a contradiction (b) a tautology

asked Mar 8, 2019 in Mathematics by kratos

+1 vote

1 answer

Write the negation of the statement ‘Australia is a continent’.

asked Mar 5, 2019 in Mathematics by kratos

+3 votes

1 answer

What is meant by tautology and fallacy?

asked Mar 3, 2019 in Mathematics by kratos

+2 votes

1 answer

Let * = {1, 2, 3, ….., 40} and let A be a subset of * such that no two elements in A have their sum divisible by 5.

asked Feb 28, 2019 in Mathematics by kratos

+1 vote

1 answer

The contrapositive of the converse of the statement “If x is a prime number then x is odd” is

asked Feb 28, 2019 in Mathematics by kratos

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