Answer:
Step-by-step explanation:
Successive terms do not have a common difference or ratio, so the sequence is not arithmetic or geometric. We can get a clue as to its nature a couple of places:
- from the alternating signs, says there is a negative multiplier involved
- from the answer choices
It is helpful to look at the differences of terms:
-5-3 = -8
11 -(-5) = 16
-21-11 = -32
These have a common ratio of -2, so match an exponential form with a ratio of -2 (the last answer choice). Trying that choice with n=1, 2, 3, 4 gives ...
a[1] = 3
a[2] = -2(3) +1 = -5
a[3] = -2(-5) +1 = 11
a[4] = -2(11) +1 = -21
These match the given sequence, so the appropriate recursive formula is ...
Answer:
B
Step-by-step explanation:
trust me bro i gotchu
W-13=15|+13
w=15+13
x=28
<em>Answer: w=28</em>
Hello:
x^5 – x^4 + x^2 =x^2(x^3 - x^2 +1)
(u/v)(x)= x^2(x^3 - x^2 +1)/(-x^2)
(u/v)(x)= - (x^3 - x^2 +1) = -x^3+x^2-1 ( x : no zero)