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k0ka [10]
3 years ago
8

PLEASE HELP ASAP *URGENT* 20 POINTS!!!!

Mathematics
2 answers:
andriy [413]3 years ago
7 0

Answer:

a5 = 122

Explanation:

<u>Given</u>:

  • a1 = 2
  • an = -3aₙ₋₁ + 2

<u>Solve</u>:

a1 = 2

a2 = -3a1+2 = -3(2)+2 = -4

a3 = -3a2 + 2 = -3(-4)+2 = 14

a4 = -3a3 + 2 = -3(14) + 2 = -40

a5 = -3a4 + 2 = -3(-40) + 2 = 122

Katen [24]3 years ago
5 0

Step-by-step explanation:

a5 =  - 3a(5 - 1) \:  + 2 \\ a5 =  - 3a4 + 2 \\ a2 =  - 3a1 + 2 \\ a2 =  - 3(2) + 2 \\  =  - 6 + 2 =  - 4 \\ a3 =  - 3( - 4) + 2 \\  = 12 + 2 = 14 \\ a4 =  - 3a3 + 2 \\  =  - 3(14) + 2 \\  =  - 42 + 2 \\  =  - 40 \\ a5 =  - 3(40) + 2 \\  -120 + 2 \\  - 118

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