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CBSE Notes 2011-2012 » XI-Maths

Mathematical Reasoning

Let p be "The sun has set" and let q be "The moon has risen" write the following statements in terms...

Short answer question

Let p be "The sun has set" and let q be "The moon has risen" write the following statements in terms of p and q :
(i) The sun has set and the moon has risen.
(ii) The sun has set but the moon has not risen.
(iii) It is false that moon has risen. (iv) The sun has not set.
(v) The sun has not set and the moon has not risen.

Write the negation of the following statements : (i) It is not true that I am stupid. (ii) Water is ...

Short answer question

Write the negation of the following statements :
(i) It is not true that I am stupid. (ii) Water is liquid and steam is gas.
(iv) I have eaten dosa or pizza. (v) If I slap you then you will cry.

Find the component statements of the compound statement, "The sun shines or it rains."

Short answer question

Find the component statements of the compound statement, "The sun shines or it rains."

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