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Q14 of 73 Page 126

If , find the value of .

Given,


F(x) = 1 -1/x


To find f(1/x) replacing x by 1/x


F(1/x) = 1 – 1/(1/x)


F(1/x) = 1 – x


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12

If then find dom (f) and range (f).

13

Let f = {(1, 6), (2, 5), (4, 3), (5, 2), (8, –1), (10, –3)} and g = {(2, 0), (3, 2), (5, 6), (7, 10), (8, 12), (10, 16)}.

Find (i) dom (f + g) (ii) dom .


15

If , where x ≠ –1 and f{f(x)} = x for x ≠ –1 then find the value of k.

16

Find the range of the function, .

Questions · 73
3. Functions
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