12
11
112
92
Correct answer is C
f(x)=2x−1;g(x)=x2+1
f(x)=2x−1
f(y)=2y−1
x=2y−1⟹2y=x+1
y=x+12
g(3)=32+1=10
f−1(10)=10+12=112
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