What is the answer
plzzzz
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a²+b²+c²-ab-bc-ca=(a+b+c)²
(999+1000+1001)²
(3000)²
90,00,000
(999+1000+1001)²
(3000)²
90,00,000
mithleshemant:
the identity is wrong
for (a+b+c ) sq. it must be 2ab+2bc+ 2ca
not ab-bc-ca
we can take 2 common and can multiply 3000 by 2
still the answer will not be thid I suppose because u cant take two common until and unless it is common in the whole expression
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