Question: def inc (a,b= 1 ) : return (a+b) a=inc( 1 ) a=inc(a,a) print(a) Could someone explain this to me. I know that the answer is

def inc(a,b=1): return(a+b) a=inc(1) a=inc(a,a) print(a)

Could someone explain this to me. I know that the answer is four, but I don't understand why. I am using PY Charm and this is Python code.

Thanks for any help!!

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