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3 years ago

What is th nth term of 4 1 -2 -5 -8

Mathematics

2 answers:

myrzilka [38]3 years ago

7 0

Answer:

here:- a=4; d:- (1-4)=(-2-1)=>-3

so, nth term= a+(n-1)d

=> 4+(n-1)-3=>4-3n+3=>7-3n

Step-by-step explanation:

nth term=(7-3n)

puteri [66]3 years ago

6 0

Answer:

-3

Step-by-step explanation:

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Ooh, fun

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a=2
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$r=\frac{5 \pm \sqrt{9}}{4}$
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use them to solve for the value of a
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$\frac{-1}{5r}=a$
try for r=2 and 1/2
$a=\frac{-1}{10}$ or $a=\frac{-2}{5}$

test each
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a+ar+ar²= $\frac{-1}{10}+\frac{-2}{10}+\frac{-4}{10}=\frac{-7}{10}$
it works

for a=-2/5 and r=1/2
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both have the same terms but one is simplified

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3 years ago

What is th nth term of 4 1 -2 -5 -8​

What is th nth term of 4 1 -2 -5 -8