Answer:
Option 1: 28 is the correct answer.
Step-by-step explanation:
The given expression for sum is:
![\[ \sum_{n=1}^{4} {2n+2} = 1 \]](https://tex.z-dn.net/?f=%5C%5B%20%5Csum_%7Bn%3D1%7D%5E%7B4%7D%20%7B2n%2B2%7D%20%3D%201%20%5C%5D)
There will be four terms in the sum
We have to find the terms by putting n=1,2,3,4 as n=1 to 4
Putting n=1
Putting n=2
Putting n=3
Putting n=4
So the summation will expand to:
![\[ \sum_{n=1}^{4} {2n+2} = 1 \] = 4+6+8+10 = 28](https://tex.z-dn.net/?f=%5C%5B%20%5Csum_%7Bn%3D1%7D%5E%7B4%7D%20%7B2n%2B2%7D%20%3D%201%20%5C%5D%20%3D%204%2B6%2B8%2B10%20%3D%2028)
Hence,
Option 1: 28 is the correct answer.
Answer:
28, 56, 84, 112, and 140
Step-by-step explanation:
4: 28,32,36,40,44,48,52,56,60,64,68,72,76,80,84, ...
14: 28,42,56,70,84,98,112,126,140
Answer:
Step-by-step explanation:
sin(14.629°) = cos(90°-14.629°) = cos(75.371°)
Answer:
k = -2/5
Step-by-step explanation:
2k+9=7-3k
2k+3k=7-9
5k=-3
k=-2/5
Answer:
I think its 66 but i dont know. i took the test and had the same question but teachers are different
Step-by-step explanation:
