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# Class 11-science RD SHARMA Solutions Maths Chapter 31 - Mathematical Reasoning

## Mathematical Reasoning Exercise Ex. 31.1

### Solution 1(i) ### Solution 1(ii) ### Solution 1(iii) ### Solution 1(iv) ### Solution 1(v) ### Solution 1(vi) ### Solution 1(vii) ### Solution 1(viii) ### Solution 1(ix)

It is not a statement.

The sentence “This sentence is a statement.” cannot  be assigned a truth value of either true or false, because either assignment contradicts the sense of the sentence.

### Solution 1(x) ### Solution 1(xi) ### Solution 1(xii) ### Solution 1(xiii) ### Solution 1(xiv) ### Solution 1(xv) ### Solution 1(xvi) ### Solution 2 ## Mathematical Reasoning Exercise Ex. 31.2

### Solution 1 ### Solution 2 ### Solution 3 ### Solution 4 ### Solution 5 ## Mathematical Reasoning Exercise Ex. 31.3

### Solution 1 ### Solution 2 ### Solution 3 ### Solution 4 ## Mathematical Reasoning Exercise Ex. 31.4

### Solution 1 ### Solution 2 ## Mathematical Reasoning Exercise Ex. 31.5

### Solution 1 ### Solution 2 ### Solution 3 ### Solution 4 ## Mathematical Reasoning Exercise Ex. 31.6

### Solution 1(i) ### Solution 1(ii) ### Solution 1(iii) ### Solution 2(i) ### Solution 2(ii) ### Solution 3 ### Solution 4 ### Solution 5 ### Solution 6 ### Solution 7 ### Solution 8 