please koi batao please

Answers
take the lcm and put the value ab, bc ca from above eqation in numerator and denominator you will get answer 0
Answer:
(4) 0
Step-by-step explanation:
Given :
(a,b,c) & (a+b+c) ≠ 0
And, ab+bc+ca = 0
consider the following :
bc + ca = -ab (1)
ab + ca = -bc (2)
ab + bc = -ca (3)
Now the given question reduces to :
(1/(a²+(ab+ca))) + (1/(b²+(ab+bc))) + (1/(c²+(bc+ca)))
=> Taking a,b,c common in respective denominators
=> (1/a(a+b+c)) + (1/(b(a+b+c))) + (1/(c(a+b+c))
Taking 1/(a+b+c) common
=> (1/(a+b+c)) [(1/a) + (1/b) + (1/c)]
=> Simplifying the second Term
=> (bc + ca + ab)/(abc)
But, According to the given data the numerator is 0, => The whole fraction is 0 => With the left term being multiplied to 0 , The answer is 0
Therefore the answer is (4)0
If you have doubts still, Pls comment.
Have a great day,
Thanking you,
Bunti 360 !