If f = {(x, 1), (2, y), (9, z)} is an identity function, find the values of x, y and z.

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Solution

For an identity function, f(x) = x

f(x) = 1

f(2) = y

f(9) = z

As f is an identity function, x = 1

y = 2

z = 9

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Similar questions

find the value of x2+y2+z2 if x+y+Z=9 and XY+YZ+ZX=26

f : N \times N \to N

z ϵ N

f (a, z) = a = f (z, a), f o r a l l a ϵ N .

I . f (x, y) = x + y - 3

I I . f (x, y) = max (x, y)

I I I . f (x, y) = x^{y}

\to

{(x + y)}^{3} - z^{2} = 4

{(y + z)}^{2} - x^{2} = 9

{(z + x)}^{2} - y^{2} = 36

x + y + z

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