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Bhim Aggarwal

· started a discussion

· 1 Months ago

how can sum of rots be 0 (Question: 292657.0 )

root sign means positive numbers and sum of 3 positive numbers 0 only possible if all are 0

Question:

If   x+y+z=0    , then the value of  (x+y-z)2xy    is –

Options:
A)

0

B)

2

C)

4

D)

8

Solution:

Ans: (c)

  

Knowledge Expert

· commented

· 1 Months ago

Dear Student
What you are telling is right
The quantity inside the roots can't be negative otherwise it'll be converted into the complex entity
And we have to take in consideration iota(i)=(-1)^(1/2)
The question has a technical default
The content is drafted by Paramount
WE'LL reach out to them for the same
Regards
TR
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