Question

in a G.P tn =(-1)*n . 2017 , then find common ratio

Answer 1

Hey there,

Put n=1, we get t₁=-2017
Put n=2, we get t₂=-4034

Common ratio=t₂/t₁=-4034/-2017=2

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Answer 2

Answer:

r=2

Step-by-step explanation:

Given : $t_n=(-1)\cdot n \cdot 2017$

To Find : Common ratio r

Solution:

Substitute n = 1

$t_{1}=(-1)\cdot n \cdot 2017$

$t_{1}=-2017$

Substitute n =2

$t_{2}=(-1)\cdot 2 \cdot 2017$

$t_{2}=−4034$

So, $r=\frac{t_2}{t_1}$

$r=\frac{−4034}{-2017}$

$r=2$

Hence the common ratio is 2