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How do I justify if these functions are inverses of each other ... F(x)=x^3 +4 & g(x)=3(radical sign) -4
You plug them into each other for x like so: (3(radical sign)-4)^3+4 -4+4 You're left with x Then do the same for the other one 3(radical sign)(x^3+4)-4 X+4-4 Left with x again there fore it is an inverse
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