Pre-Calc Homework Solutions 26

# Pre-Calc Homework Solutions 26 - 26 16 y y Section 1.5 x2 1...

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Unformatted text preview: 26 16. y y Section 1.5 x2 1 y x f 1 1, x x ,x 1 1 x y x 1 2 0 0 For x (f 1 2 (the domain of f), f )(x) f 2 2 x 1), x 1 2 1 ( (x (x 2 2)2) 2)2 2 1 (x 2) x Interchange x and y. 20. y 1 or (x 1)1/2 1 (x (x y y 2x 1) , x 2 (x) y ), Verify. For x (f f )(x) ( 1 (the domain of f f( x x 1) 1 x 1 1 (x) 1 x y x 1 or x 1/2 1 1 1) 1) 2 1 x Interchange x and y. x f 1 (x For x (f 1 1 1) 1) x 0, (the domain of f), f)(x) f (x 2 2 2 Verify. 1 x For x (f f 1 (x x 17. y x y f 1 2 0 (the domain of f )(x) f( x [( ( ( For x x x) 2 ), x 1 2 1) x 1] 2 1 1) 1)2 2 x 1 (the domain of f), 2x 2x 1)2 1 1 x 1) 1 x 2( x ,x y x (x) 0 Interchange x and y. x or x 1/2 x)2 1 (f 1 f )(x) f (x 2 Verify. For x (f f For x (f 18. y y 3/2 y 3/2 x f 3/2 1 1 1 x 0 (the domain of f )(x) f( f 0 0 x 1 1 2 ), x)2 x2 x x x 21. y x2 1 ,x x2 1 ,x y 1 y 1 x 1 (x x (x 0 0 1 y x) (x 2) ( 1 1) 1 1 0, (the domain of f ), f)(x) x 2/3, x x y (x) x 3/2 (x 2/3)3/2, x Interchange x and y. y f Interchange x and y. (x) 1 x or 1 x1/2 1 Verify. For x (f f for x (f 19. y (x x x y f 1 1 1 Verify. 0 (the domain of f )(x) f (x f 2)2, x y, x y y x 2 x or 2 ( x)1/2 1 3/2 1 ), x x x For x (f f For x 1 1 0 (the domain of f )(x) f 1 x ), x x2 ) 2/3 (x 3/2 2/3 1 (1/ x)2 1 1/x 2 ) 0, (the domain of f ), f )(x) (x 2)2 1 0 (the domain of f), f)(x) f 1 1 (x ) 2 2 (x 2/3 3/2 ) (f 22. y x3 x x2 x x 2 2 2 (x) 1 x3 1 y 3 1 y 1 3 1 3 y Interchange x and y. Interchange x and y. y f 1 x (x) 1 3 or x Verify. For x (f f 1 1 x1/3 1 3 Verify. 0 (the domain of f )(x) f (2 [(2 ( x) 2 ) (f f 2]2 x x (f 1 1 x) x) )(x) f 1 (1/ x)3 1 3 3 x x f)(x) x 1 f 1 3 x 1/x3 ...
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