legendarysmilez legendarysmilez

23-12-2021
Mathematics

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If f(1) = 9 and f(n) = -4f(n-1) + 4 then find the value of f(3).

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wegnerkolmp2741o wegnerkolmp2741o

23-12-2021

Answer:

132

Step-by-step explanation:

f(1) = 9

f(n) = -4f(n-1) + 4

Let n = 2

f(2) = -4f(2-1) + 4 = -4 f(1) +4 = -4(9) +4 = -36+4 = -32

Let n = 3

f(3) = -4f(2-1) + 4 =-4f(2)+4 = -4 (-32) +4 = 128+4=132

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