A) give the definition of cauchy sequence. then give an example.

Step-by-step explanation:

In mathematics a Cauchy sequence is a sequence whose elements become closer for larger n.

i.e. for a sequence

if for all m,n >n then we call this a cauchy sequence.

eg:

This will be of the form

For large n, the difference between consecutive terms would be very small.

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation:

w< 4

step-by-step explanation: