Question

If the number a, b, c, and e from AP then. Find the value of a-4b+6c-4d+e.

Answer 1

Answer:

0

Step-by-step explanation:

let common difference = x

b = a + x

c = a + 2x

d = a + 3x

e = a + 4x

a - 4b + 6c - 4d + e

= a - 4(a+x) + 6(a+2x) - 4(a+3x) + (a+4x)

= a -4a - 4x + 6a + 12x - 4a - 12x + a + 4x

= 0