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if a + b + C is equal to zero then find the value of of a square by BC + b square by CA + c square by a b is equal to? A )1 . B)-1 . C)0 . D)3 |
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Answer» Your answer is D) 3 Step-by-step EXPLANATION: Using the formula, a^3 + b^3 + c^3 = (a + b + c) (a^2 + b^2 + c^2 ab bc ca) + 3abc If a+b+c=0, then a^3 + b^3 + c^3 = 3abc abc a 3 +b 3 +c 3
=3 abc a 3
+ abc b 3
+ abc c 3
=3 bc a 2
+ ca b 2
+ ab c 2
=3 |
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