Math, asked by swarnimapetwal15, 23 days ago


Three numbers are in A. P. The difference between the first and the last is 8 and the

product of these two is 20. Find the numbers.
that the sequence is an Ap​

Answers

Answered by Comeforfun2005
0

Answer:

Step-by-step explanation:

D=4

A=6

So sequence is 2,6,10

Answered by shivgupta15sep2005
0

Answer:

10, 6, 2

Step-by-step explanation:

let d be the common difference

let a be the first term of AP

let 3 numbers be (a-d), a, (a+d)

(a-d)-(a+d)= 8

a-d-a-d= 8

-2d= 8

d= -4 ----- 1

(a-d)×(a+d)= 20

a²+ad-ad-d²= 20 (sub. value of d from equation 1)

a²- 16= 20

a²= 36

a=6

AP series:

d= -4, a= 6

a-d= 6-(-4)

= 10

a= 6

a+d= 6+(-4)

= 2

Hence AP series is 10, 6, 2

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