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Let f:RtoR:f(x)=x^(2). Determine (i) ran...

Let `f:RtoR:f(x)=x^(2)`. Determine (i) range (f) (ii) `{x:f(x)=4}`

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The correct Answer is:
(i) `[0,oo)` (ii) `{-2,2}`
(i) `f(x)=x^(2)ge0."So,range "(f)=[0,oo)`
(ii) `f(x)=4impliesx^(2)=4impliesx=pm2`.
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RS AGGARWAL-FUNCTIONS-EXERCISE 3F VERY-SHORT-ANSWER QUESTIONS
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  4. Let f:RtoR:f(x)=x^(2). Determine (i) range (f) (ii) {x:f(x)=4}

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  9. Find the range of the function f(x)=|x|.

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  10. Write the domain and the range of the function f(x)=sqrt(x+[x]).

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  15. Find the range of the function, f(x)=(x)/(|x|)

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  16. Find the domain of the function, f(x)=log|x|.

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