Question

if a + b + C is equal to 15 and a b + BC + CA is equal to 60 then find the value of a square + b square + c square

Answer 1

Put the value in eq.i.e a+b+c=15 equation no 1 and ab +bc +CA=60 eq no 2 solve both the eq it may take a long steps but keep on doing....lastly u will find value of a b c now. put the value in a square+ b square+ c square

Answer 2

here is your answer
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