Math, asked by jacintojj, 1 year ago

Dada a progressão com três termos:

PG: (a, b, c)

Sabendo que a + b + c = 35 e abc = 1000, qual será a equação do segundo grau em que suas raízes serão iguais a razão q desta PG?

A
q2 + q + 5 = 0

B
10q2 + 20q + 30 = 0

C
10q2 − 25q + 10 = 0

D
18q2 + 25q − 20 = 0

E
45q2 + 12q − 80 = 0

Answers

Answered by prathamuttekar27
1

Answer:

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Answered by amitnrw
5

10q^2 − 25q + 10 = 0

Step-by-step explanation:

we need to find quadratic equation whose roots are ratio of gp formed by a b c.

a + b + c = 35

abc = 1000

a = 20

b = 10

c = 5

20 , 10 , 5 r = 1/2

5 , 10, 20 , r = 2

10q^2 − 25q + 10 = 0

10q^2 - 20q - 5q + 10 = 0

10q(q-2) -5(q-2) = 0

q = 1/2 or 2

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