Thursday

September 18, 2014

September 18, 2014

Posted by **Abbey** on Sunday, April 4, 2010 at 3:59pm.

a1 = 2 r=sqrt3

I know the first term is 2 but the sqrt 3 threw me off so I do not know how to find the next numbers.

2) Find the nth term of the geometric sequence.

a2 = 3 a5 = 3/64 n=1

I know the formula is a1^r n-1 but I do not know how to find a1.

- Pre-Cal(Please help) -
**Abbey**, Sunday, April 4, 2010 at 5:46pmAnswered Already

- Pre-Cal(Please help) -
**Damon**, Sunday, April 4, 2010 at 5:49pm2

2 sqrt 3

2*3 = 6

6 sqrt 3

6*3 = 18

18 sqrt 3

18*3 = 54 etc

- Pre-Cal(Please help) -
**Damon**, Sunday, April 4, 2010 at 5:57pma1

a1 r = 3

a1 r^2

a1 r^3

a1 r^4 = 3/64

so

a1 = 3/r

( 3 r^4/r) = 3/64

r^3 = 1/64 = 1/2^6

r = 1/2^2

r = 1/4

a1 = 12

**Answer this Question**

**Related Questions**

Pre-Cal - 1) Write the first five temrs of the geometric sequence a1 = 2 r=sqrt3...

Maths - 1..The first 2 terms of a geometric progression are the same as the ...

Math - 1. What is the tenth term of the geometric sequence whose first term (a1...

Math - A sequence is formed by adding together the corresponding terms of a ...

Math PLEASE HELP PLEASE PLEASE PLEASE - Question 1 Write the first four terms ...

math30 - Sequences 1)A sequence has a first term of 24 and every other term is ...

math - write the first five terms of a geometric sequence whose first term is ...

Maths - The first term of an arithmetic sequence is 2. The first, third and ...

Math - Question 1 Write the first four terms of the sequence whose general term...

math - Determine whether each sequence is arithmetic or geometric. Find the next...