Question

Three terms are in A.P if the sum of A.P is -3 and their product is 8.find no.

Answer 1

Let the three terms be a-d,a,a+d

Given,

a-d+a+a+d=-3

3a=-3

a=-1

Again, given,

a-d*a*a+d=8

Put a=-1,

Then,

(-1-d)(-1)(-1+d)=8

d^2=9

d=3

Thus,

Required numbers are,

a-d=-4,

a=-1,

a+d=2....

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