Answer:
The answer is 1701
Explanation:
f(1) = 7
Substitute f(1) = 7
f(2) = 3f(2-1)
= 3f(1)
=3(7)
f(2) = 21
Substitute f(2) = 21
f(3) = 3f(3-1)
= 3f(2)
= 3(21)
f(3) = 63
Substitute f(3) = 63
f(4) = 3f(4-1)
= 3f(3)
= 3(63)
f(4) = 189
f(5) = 567
Substitute f(5) = 567
f(6) = 3f(6-1)
= 3f(5)
= 3(567)
f(6) = 1701
Geometric sequence:
7,21,63,189,567,1701
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