Expression 1: left brace, 0 less than or equal to "x" less than or equal to 1 : StartFraction, 2 Over pi "n" , EndFraction arcsin left parenthesis, sin left parenthesis, 2 pi "n" "x" , right parenthesis , right parenthesis , right brace0≤x≤1:2πnarcsinsin2πnx