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Verified answer
Mapel : MatematikaKelas : IX SMP
Materi : Barisan dan deret
Pembahasan :
U5 - U4
= [10 - 3.5] - [10 - 3.4]
= [10 - 15] - [10 - 12]
= (-5) - (-2)
= -5 + 2
= -3