a + b + c = 9, a2 + b2 + c2 = 29 হলে ab + bc + ca এর মান কত?

A

 52 

B

46

C

 26 

D

22

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Updated: 4 months ago

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যদি

Created: 1 month ago

A

47

B

49

C

51

D

57

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