If 20C1 + (22) 20C2 + (32) 20C3 +…+ (202) 20C20 =A(2β), then the or – McqOptions

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1.	If 20C1 + (22) 20C2 + (32) 20C3 +…+ (202) 20C20 =A(2β), then the ordered pair (A, β) is equal to:
A.	(420, 19)
B.	(420, 18)
C.	(380, 18)
D.	(380, 19)
Answer» C. (380, 18)

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