plz ans it...as soon as possible
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Kakrot:
hey .. you cannot ask the questions of your institute books..
whyyy
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Ans:- Let the First term of GP be a and common difference be r.
we know that sum of n terms of GP is given as,.
{a(r^n - 1)}/(r-1).
.....let the sum of First 20 terms be denoted as S20 and sum of First 10terms be denoted as S10.
So,.
According to question
S20= 244 *S10.
→
{a(r^20 - 1)}/(r-1)= {a(r^10 - 1)}/(r-1)..
On solving it
we get r= .+√3 or -√3.
Hence option (a) is correct
see picture!!
we know that sum of n terms of GP is given as,.
{a(r^n - 1)}/(r-1).
.....let the sum of First 20 terms be denoted as S20 and sum of First 10terms be denoted as S10.
So,.
According to question
S20= 244 *S10.
→
{a(r^20 - 1)}/(r-1)= {a(r^10 - 1)}/(r-1)..
On solving it
we get r= .+√3 or -√3.
Hence option (a) is correct
see picture!!
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tq so much
:-)
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1
Answer:
Semantics is the study of meaning. There are two types of meaning: conceptual meaning and associative meaning. ... The conceptual meaning of concise is expressed in few words, but concise being a good thing is part of the associative meaning.
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