An onto function means that every element in the codomain must have a qunique preimage true of false

False

Step-by-step explanation:

Onto function:-

Let two non empty  set A and B .The function is defined  from set A to set B.

If the function is onto then every element of y in codomain  B has at-least one pre-image in the domain A .

Or

For every element in y codomain , there is at least one element  x in the domain A such that

f(x)=y

If the function is onto then

Range=Codomain

If the function is onto then every element in the co-domain musta have a pre-image not unique.

Therefore, the given statement is false.

i dont know sorry

step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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