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____ [38]
3 years ago
11

If f (1) = 7 and f (n) = 4 f (n - 1) then find the value of f (5)

Mathematics
1 answer:
Elina [12.6K]3 years ago
7 0

Answer:

1792

Step-by-step explanation:

given,

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

here,

f(2) = 4 f ( 2-1)

= 4 f ( 1 )

= 4. 7

= 28

then,

f(3) = 4 f ( 3-1)

= 4 f ( 2)

= 4. 28

= 112

again,

f (4) = 4 f ( 4-1)

= 4 f ( 3)

= 4.112

=448

at last,

f ( 5) = 4 f ( 5-1)

= 4 f ( 4)

= 4. 448

= 1792

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