81,27,9,3,_,_

81,27,9,3,_,_

Express the sum using summation notation. Thank you.

what is the first term of the sequence An = -n2 and n≥1?? Please Help Solve with step by step solution to problem and the final solution.

The possible answers are: 1595 800 695 1840 1595 800 695 1840

in the sequence an the n-th term is defined as (an-1-1)2.if a3=64 then what is the value of a1? can anybody show me the shortest method to solve this?

what is the nth term and the formula for the sequence 2,1,4,3,12,0,0,8,6,8

A ball is thrown vertically upwards from the ground. It rises to a height of 10m and then falls and bounces. After each bounce it rises vertically to 2/3 the height from which it fell. (i)...

In other words: Pattern 1= 3 line segments (1 triangle) Pattern 2= 9 line segments (4 triangles) Pattern 3= 30 line segments (16 triangles) etc.......

Trying to find the next number in this sequence of numbers

is it 10 or 13 or 5?

let 〈xn〉n=1...∞ be a sequence satisfying xn+1=xn-xn-1 for each n. Prove that ∀ n ∈ N, xn+6=xn by induction Please help me. I'm reviewing for my final and something...

I am 65 years old and I can not figure this out.!

Hello, could you help me find the formula for this series, please? How do I go about it? 4,9,16,25,...I know it starts with adding 5 and adding 2 more with every number, so adding 7 next,...

AP 1st term=x+1, 2nd term=2x-1, 4th term=2x+5, find x, a, d Please help me how to find even one of these values. I don't even have the sum of given terms, so I really have no...

I ve been tasked to find the answer to the question,the number of the sequence is 17,if the second is 3, what is the first number?help Me with the answer and calculations

What is the next number?

First term of sequence is 3 and the common difference is 5. The nth term is the first term in this sequence >1000. Find value of n.

We have to recurrence relation an = 2an-1 - an-2. Find a2 and a3 if: a) a0 = 1 and a1= 1? b) a0 = 0 and a1 = 0?

a_1= 256, a_(n+1)= √(a_

f(1)=6, f(n)=1/f(n-1) for n>2