Question

which of the following functions are one -one onto . a).{(5,2),(7,9),(3,4),(6,3),(8,1)}. b).{(a,7),(b,4),(c,6),(f,4),(k,2),(h,8)}​

Answer 1

Answer:

answer is below

Step-by-step explanation:

1 ) 5 / 2

2) 7/9

3) 3/4

4) 6/3

5) 8/1

B part

1) a/7

2) b/4

3) c / 6

4) f / 4

5) k/2

6) h / 8

Answer 2

Step-by-step explanation:

most unfortunate thing?

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(iv) What according to the author is 'bad mathematics'?

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