Answer:
Step-by-step explanation:
f(x) = x + 1, find f(x+3)
f(x+3) = x + 3 + 1 = x + 4
A 5x2=10 I think it’s right
This is known as: Symmetry
Answer:
-2 ≤x ≤10
Step-by-step explanation:
the domain refers to the x
the x is in between -2 and 10
When
, we have
![\dfrac n{2n+1}=\dfrac1{2\cdot1+1}=\dfrac13](https://tex.z-dn.net/?f=%5Cdfrac%20n%7B2n%2B1%7D%3D%5Cdfrac1%7B2%5Ccdot1%2B1%7D%3D%5Cdfrac13)
When
, we have
![\dfrac n{2n+1}=\dfrac2{2\cdot2+1}=\dfrac25](https://tex.z-dn.net/?f=%5Cdfrac%20n%7B2n%2B1%7D%3D%5Cdfrac2%7B2%5Ccdot2%2B1%7D%3D%5Cdfrac25)
and so on. The series is then
![\displaystyle\sum_{n=1}^6\frac n{2n+1}=\frac13+\frac25+\frac37+\frac49+\frac5{11}+\frac6{13}](https://tex.z-dn.net/?f=%5Cdisplaystyle%5Csum_%7Bn%3D1%7D%5E6%5Cfrac%20n%7B2n%2B1%7D%3D%5Cfrac13%2B%5Cfrac25%2B%5Cfrac37%2B%5Cfrac49%2B%5Cfrac5%7B11%7D%2B%5Cfrac6%7B13%7D)