Question

if x-1, x+2, x-7 is an AP. find the value of x​

Answer 1

Answer:

These are not in A.P

step-by-step explanation:

We know that if three terms a, b, c are in A.P

then,

a+c = 2b

Here,

a = (x-1)

b = (x+2)

c = (x-7)

Its is given that all these 3 terms are in A.P

So,

a+c = 2b

=> (x-1)+(x-7 )= 2(x+2)

=> 2x -8 = 2x+4

=> -8 = 4

But,

its never possible,

its contradiction

so the given terms are not in A.P