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13-04-2021
Mathematics

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If f(1)=-2 and f(n)=3f(n-1)-5, then f(3)=

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reeserl reeserl

13-04-2021

Answer:

f(3) = - 38

Step-by-step explanation:

f(2) = 3 f(2 - 1) - 5 = 3 f(1) - 5 = 3(-2) - 5 = -6 - 5 = -11

f(3) = 3 f(3 - 1) - 5 = 3 f(2) - 5 = 3(-11) - 5 = - 33 - 5 = - 38

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