Question

If a=6, S10=195 show Sn-3:Sn-8=n(n-3):(n-5)(n-8)

Answer 1

Answer:

20

Step-by-step explanation:

by relation between the solids

Answer 2

Answer:

The question is wrong , as the required thing is not satisfied the given conditions.

Step-by-step explanation:

a=6 (given)

Sn=n/2(2a+(n-1)d)

S10=195(given)

10/2(2(6)+(10-1)d)=195

By solving the above equation,

We get , d =2

Now the for the ratio let's take Sn=S2

Then try doing the required thing which have to be shown.....

After doing this u'll know that the information doesn't satisfy or applicable .

Hope u got it buddy.