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Bhagyasree

· started a discussion

· 1 Months ago

answers for the questions (Question: 336999.0 )

please post the description of the answers so that it would be helpful to analyse ourselves.

Question:

 If a = x + y, b = x – y, c = x + 2y, then the value of a2 + b2 + c2 – ab – bc – ca  is – 

Options:
A)

4y2

B)

7y2

C)

6y2

D)

5y2

Solution:

Ans: (b) 


jishnu r

· commented

· 1 Months ago

hey just put values x=2, y=1 , substitute this in the equation then compare with the given options

Knowledge Expert

· commented

· 1 Months ago

Dear Student,

We fixed its explanation.

Keep learning with us!
Best wishes
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