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Relations And Functions

Question
CBSEENMA11013296
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Which of the following are examples of null set?

{ y : y is a point common to any two parallel lines}

Solution

Let                   E (y : y is a point common to any two parallel lines)
Two parallel lines do not meet and as such have no common point.
rightwards double arrow               space space space space space straight E space space equals space open curly brackets space space close curly brackets space space equals space straight ϕ
Hence,  E is a null set.

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Some More Questions From Relations and Functions Chapter

Collection of beautiful girls in India.

Fill in the blanks in the following table:

Numbers

Closed under
 

Addition

Subtraction

Multiplication

Division

Rational numbers

Yes

Yes

  

No

Integers

  

Yes

  

No

Whole numbers

...

  

Yes

  

Natural numbers

  

No

    
 

i9 + i19

3(7 + i7) + i(7 + i7)

Express each of the complex number given in the  form of  a + ib.

(1 - i) - (-1 + i6)

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