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B. Write the first five geometric terms of each following information.
3.r=1/2 and a10=1/64

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Sagot :

Answer:

8,4,2,1,1/2

Step-by-step explanation:

number of terms_,_,_,_,_

giveng

r = 1/2

A10 = 1/64

10 - 1

1/64 = ( a1 ) ( 1/2 )

1/64 = ( a1 ) ( 1/2 )⁹

a1 = 8

n - 1

an - ( a1 ) ( r )

2 - 1

a2 = ( 8 ) ( 1/2 )

a2 = 4

number of terms: 8, 4 _,_,_

n - 1

an = ( a1 ) ( r )

3 - 1

a3 = ( 8 ) ( 1/2 )

2

a3 = ( 8 )( 1/2 )

a3 = ( 8 ) ( 1/4 )

a3 = 2

number of terms: 8, 4, 2, _,_

n - 1

an = ( a1 ) ( r )

4 - 1

a4 = ( 8 ) ( 1/2 )

a4 = ( 8 ) ( 1/2 )

a4 = ( 8 ) ( 1/8 )

a= 1

number of terms: 8, 4, 2, 1, _

n - 1

an = ( a ) ( r )

5 - 1

a5 = ( 8 ) ( 1/2 )

4

a5 = ( 8 ) ( 1/16 )

a5 = 1/2

number of terms: 8, 4, 2, 1, 1/2

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