Find the value of ff12 + f(ff3), if f(x) = 1x-1if x is an integer11-xif x is not an integer
Explanation:
f(1/2) = 11-1/2 = 2 f(f(1/2)) = f(2) = 12-1 = 1
Also, f(3) = 13-1 = 12 f(f(3)) = f(1/2) = 11-1/2 = 2 f(f(f(3))) = f(2) = 12-1 = 1
∴ f(f(1/2)) + f(f(f(3))) = 1 + 1 = 2
Hence, option (a).
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