Question

If a +b+c+d = 4, then find
1/(1-a)(1 – b)(1-c)+1/
(1 - b)(1-c)(1-d)+1/
(1-d)(1 – a)(1 – b)​

Answer 1

Answer:

I just tried this

not sure

Answer 2

Answer:

0

Step-by-step explanation:

1(1−a)(1−b)(1−c)+1(1−b)(1−c)(1−d)+1(1−c)(1−d)(1−a)+1(1−d)(1−a)(1−b)                                Put a=0b=0c=2d=2∴a+b+c+d=4⇒0+0+2+2=4⇒4=4( satisfy)                               1(1−0)(1−0)(1−2)+1(1−0)(1−2)(1−2)+1(1−2)(1−2)(1−0)+1(1−2)(1−0)(1−0)=1−1+(1+1)+1−1×−1+1−1=−1+1+1−1=0