Question

Q2. Evaluate if A = a + b + c, B = a - b + c, C = a + b -c and D=-a-b-c.
i. A-B
ii. B + C-D
iii. A-C-D
iv. A + B-C
V. B-D​

Answer 1

Answer:

Answer Is ..................

......

very Very Diificult

Answer 2

Answer:

i. A-B

(a+b-c)- (a-b+c)

a+b-c-a+b-c

2b-2c

2(b-c) ans

ii. B+C-D

(a-b+c)+(a+b-c)-(-a-b-c)

a-b+c +a+b-c+a+b+c

3a+b+c ans

iii. A-C-D

(a+b-c)-(a+b-c)-(-a-b-c)

a+b-c-a+b-c+a+b+c

a+3b+c ans

iv.A + B - C

(a+b-c)+(a-b+c) -(a+b-c)

a+b-c+a-b+c-a-b+c

a-b+c ans

V. B-D

(a-b+c)-(-a-b-c)

a-b+c+a+b+c

2a+2c

2(a+c) ans.