6, -2, 2/3, -2/9
To determine the next two terms, identify if it is an arithmetic or geometric sequence.
Take note that an arithmetic sequence has a common difference. While a geometric sequence have a common ratio.
To find the common difference, subtract the successive terms.
-2-6=-8
2/3-(-2)=8/3
-2/9-2/3=-8/9
Since the three pairs of consecutive terms do not have the same result, the given sequence is not an arithmetic sequence.
To find the common ratio, divide the consecutive terms.
-2/6=-1/3
(2/3)/(-2) = -1/3
(-2/9)/(2/3)=-1/3
Since the result are the same, the given sequence is geometric. Its common ratio is -1/3 .
So the 5th term of the geometric sequence is:
-2/9*(-1/3) = 2/27
And its 6th term is:
2/27*(-1/3)=-2/81
Therefore, the next two terms of the given sequence are 2/27 and -2/81.
Sunday, November 27, 2011
6,-2,2/3,-2/9,... Write the next two apparent terms of the sequence. Describe the patterns used to find these terms.
Subscribe to:
Post Comments (Atom)
Summarize the major research findings of "Toward an experimental ecology of human development."
Based on findings of prior research, the author, Bronfenbrenner proposes that methods for natural observation research have been applied in ...
-
One way to support this thesis is to explain how these great men changed the world. Indeed, Alexander the Great (356–323 BC) was the quintes...
-
At the most basic level, thunderstorms and blizzards are specific weather phenomena that occur most frequently within particular seasonal cl...
-
x=4cost y=2sint First, take the derivative of x and y with respect to t. dx/dt=-4sint dy/dt=2cost Then, determine the first derivative dy/dx...
-
Ethno-nationalism is defined as "advocacy of or support for the political interests of a particular ethnic group, especially its nation...
-
Both boys are very charismatic and use their charisma to persuade others to follow them. The key difference of course is that Ralph uses his...
-
Find the indefinite integral $\displaystyle \int \sec^4 \left( \frac{x}{2} \right) dx$. Illustrate by graphing both the integrand and its an...
-
The most basic attitude difference between Mr. Otis and Lord Canterville is their attitude toward the ghost. The attitude difference start...
No comments:
Post a Comment