An=1/2 a^3 n-1 +1; A1=0

A1=0

A2=1/2(0)^3+1=1

A3=1/2(O)^3+1=1.5

A4=1/2(1.5)^3+1=2.69

A5=1/2(2.69)^3+1=10.74

would this one be correct?

i cant figure out this one for some reason

An=4(-2)^ n-1

what would A1 and A2 be and why? thank you

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- May 12th 2008, 04:14 PMblackhawk9876writing a sequence
An=1/2 a^3 n-1 +1; A1=0

A1=0

A2=1/2(0)^3+1=1

A3=1/2(O)^3+1=1.5

A4=1/2(1.5)^3+1=2.69

A5=1/2(2.69)^3+1=10.74

would this one be correct?

i cant figure out this one for some reason

An=4(-2)^ n-1

what would A1 and A2 be and why? thank you - May 12th 2008, 10:35 PMMoo
Hello,

yep

Quote:

i cant figure out this one for some reason

An=4(-2)^ n-1

what would A1 and A2 be and why? thank you

$\displaystyle A_{\color{red}2}=4 \cdot (-2)^{{\color{red}2}-1}=\dots$ - May 13th 2008, 04:40 AMblackhawk9876
thank you(Hi)