Question

if a,b,c and d are four positive real no's such that the sum of a,b and c is even and the sum of b,c and d is odd then a^2 - d^2 is necessarily:-

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Answer 1

Answer:

→ Question ⇒

                              If a,b,c and d are four positive real no's such that the sum of a,b and c is even and the sum of b,c and d is odd then $a^{2} - d^{2}$ is necessarily:-

→Answer ⇒

                Given:-

                         ⇒  a+b+c = even number

                        ⇒  b+c+d = odd number

⇔ remove b and c from both eq

⇔after removing b and c only and d is left..

⇔a is even and d is odd ..

  ⇒ a- d = even - odd = odd

  ⇒$a^{2} -d^{2} = odd$

Step-by-step explanation:

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Answer 2

Answer:

Odd number

Step-by-step explanation:

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