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Helpppppppppppppppppppp
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Helpppppppppppppppppppp

Helpppppppppppppppppppp-example-1
User Firdous Nath
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1 Answer

6 votes

a_1=11+(1-1)(4)=11+0=11\\\\a_2=11+(2-1)(4)=11+4=15

so:


a_2=a_1+\,?\\\\15=11+\,?\\\\\boxed{?=4}

Answer B.
User Stephane
by
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