Question

19. IfB - (a, e, d) and C = (b,d,e). Then find the
value of (BUC)
(a) (a,e,db,d,e)
(c) (a,c,d, b.d.)
(b) (a,c,d,d,e)
(d) (a,c,d,b,c)​

Answer 1

Answer:

a,b,c,d and e are in AP

let a=X

b=X+d

c=X+2d

d=X+3d

e=X+4d

put the given value,

a−4b+6c−4d+e

X−4(X+d)+6(X+2d)−4(X+3d)+X+4d

=(X−4X+6X−4X+X) + (−4d+12d−12d+4d)

=0+0=0

So, the value of a−4b+6c−4d+e=0