Math, asked by aakash844707, 1 day ago

एक गुणोत्तर श्रेणी के तीन पदों का गुणन फल 512 है । यदि प्रथम पद में 8 तथा द्वितीय पद में 6 जोड़ दे तो नये पदो से एक समांतर श्रेणी बनती है तीनों पदो को ज्ञात कीजिए ।​

Answers

Answered by amanraj56
0

let the term of gp be a/r, a, r

product of gp = 512

a/r×a×ar=512

a³=512

a³=8³

a=8

term of gp be 8/r, 8, 8r

8/r+8, 8+6, 8r be in ap

8/r+8, 14, 8r be in ap

so,

14-(8/r+8)= 8r-14

14-8/r-8=8r-14

6-8/r= 8r-14

8r+8/r= 20

(8r²+8)/r= 20

8r²+8=20r

8r²-20r+8=0

4(2r²-5r+2)=0

2r²-5r+2=0

2r²-4r-r+2=0

2r(r-2)-1(r-2)=0

(2r-1)(r-2)=0

r=2 r=1/2

hence term of gp be 8/r, 8, 8r (if r=2)

8/2, 8, 8×2

4, 8, 16

again term of gp be 8/r, 8, 8r if (r=1/2)

8/1/2 , 8, 8×1/2

16, 8, 4

#666

Answered by Xxdiya76xX
1

Answer:

uh means u

Step-by-step explanation:

palabo means bhagna in bengali

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