Q6 of 25 Page 1

Write the domain of the real function f defined by .

Given function:


Now to find the domain, we need to find the values of x for which f(x) is defined.


So, f(x) should be real.


should be real.


So,


25 – x2 ≥ 0


(5 + x)(5 – x) ≥ 0


Therefore, x ∊ [-5, 5]


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