Q. 21 A4.5( 2 Votes )

# Let and g (x) = x be two functions defined in the domain R^{+}∪ {0}. Find

(f + g) (x)

Answer :

Given: f(x) = √x and g (x) = x two functions defined in the domain R ^{+} ∪{0},

To find: (f + g)(x)

Explanation: this can be obtained by adding functions f(x) and g(x), i.e.,

⇒ (f + g)(x) = f(x) + g(x)

Substituting the corresponding equation, we get

⇒ (f + g)(x) = √x + x

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