1.

If the number a b c d re form an AP then find the value of a-4b+6c-4d+e= ?​

Answer»

Answer:

0

Step-by-step explanation:

The AP is : a  b  c  d  e

Let the FIRST TERM be of the form A ; and the difference is D . Then

Let the AP be in the form :-

A-2D (a)   A-D(b)   A(c)   A+D(d)   A+2D(e)

Now using these terms in the value

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

=A-2D-4(A-D)+6(A)-4(A+D)+(A+2D)

After EXPANDING , we get

=A-4A+6A-4A+A

=2A-8A+6A

=8A-8A

=0



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