Question

If a1 = 5 and 5 and an = -3an-1 then find the value of a5. WILL GET BRAINLIEST ​

Answer 1

Answer:

405

Step-by-step explanation:

Given

• a₁ = 5
• aₙ = -3aₙ₋₁

Solving

• a₂ = -3a₁ = -3(5) = -15
• a₃ = -3a₂ = -3(-15) = 45
• a₄ = -3a₃ = -3(45) = -135
• a₅ = -3a₄ = -3(-135) = 405

Answer 2

a_1=5

• a_2=-3a_1=-3(5)=-15
• a_3=-3a_2=-3(-15)=45
• a_4=-3a_3=-3(45)=-135
• a_5=-3a_4=-3(-135)=405