Math, asked by kirurevathy2005, 8 months ago

II. Answer the following questions: (3x4=12]

6. The sum of first three terms of a G.P. is 13/12
and their product is -1. Find the common ratio and the terms. give me correct answers plz... because it's urgent ​

Answers

Answered by hema9274
1

Answer:

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Answered by rohitgupta81
1

Answer:

Let the three terms be a/r,a,ar.

So,a/r×a×ar= -1

a^3= -1

a^3= -1^3

a= -1.

a/r+a+ar=13/12

-1-r^2/r=25/12

-12r^2-12=25r

12r^2+25r+12=0.

12r^2+16r+9r+12=0

4r(3r+4)+3(3r+4)=0

3r+4=0

r= -4/3........

So the terms are 3/4,-1,4/3.

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