Answer:
30
Explanation:
f(2) = f(2-1)*2
f(2) = 15 × 2 = 30
f(2) =30
f(1)=15
f(n)=f(n-1)*n
Put in n=2
f(2)=f(2-1)*2
= f(1) *2
= 15*2
=30
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