Question

If a + b + c - 1. then prove that (a + bc)(b + c) - (b + ca) (c + a)(c + ab) (a + b)
(1-a) (1 - b)(1-c).​

Answer 1

Answer:

Prepare clothes for wash. Prepare clothes for wash. ...

Remove dried dirt from clothes. If you have a soiled dress with dried-up dirt use a brush to gently brush off the dirt from the surface. ...

Step 3 Treat stains. ...

Sort the garments. ...

Set Water temperature and the cycle. ...

Detergent. ...

Washing. ...

Dr

Answer 2

Answer:

please thanks for the answer

please mark as brainliest answer

Step-by-step explanation:

(a-b)/c +(b-c)/a +(c+a)/b=1

(a-b)/c +(b-c)/a +(c+a)/b=1+1-1

(a-b)/c+1 +(b-c)/a-1 +(c+a)/b-1=0

{(a-b)/c+1} +{(b-c)/a-1} +{(c+a)/b-1}=0

(a-b+c)/c +(b-c-a)/a +(c+a-b)/b=0

(a-b+c)/c -(-b+c+a)/a +(c+a-b)/b=0

(a-b+c)/c -(a-b+c)/a +(a-b+c)/b=0

(a-b+c)(1/c-1/a+1/b)=0

so {1/c-1/a+1/b}=0

=>1/a=1/b+1/c