What are your answer choices
Answer:
= 2
= k(k+1)
= (k+1)(k+2)
Step-by-step explanation:
We are given the statement,
as 2 + 4 + 6 + . . . + 2n = n(n+1)
That is,
as 2 + 4 + 6 + . . . + 2n = 
So, we have,
=
= 2
=
= 2 + 4 + 6 + . . . + 2k = k(k+1)
=
= 2 + 4 + 6 + . . . + 2k + 2(k+1) = (k+1)(k+2)
Thus, we get,
= 2
= k(k+1)
= (k+1)(k+2)
Answer: We have to find the inverse function of the following:

The Inverse of the (1) is as follows:

The domain of the inverse function is:
Answer:
See attached image.
Step-by-step explanation:
If x=y, the (x,y) = (x,x) or (y,y). All points have the same x and y values.
Answer:
6.513
Step-by-step explanation:
1.7 + 0.8 + 4.013 = 6.513 (As there are double minus, so it will become a plus)