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221. यदि a + b + c = 6 और
ab + bc + ca = 11 हो तो
bc(b + c)+ ca(c + a)+ ab(a+b)+3abc
का मान बतायें ?
(a) 33 (b) 66 (C) 55 (d) 23
Ans =366
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Answer:
366
Step-by-step explanation:
366
366
366is the answer
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