Solve the following in equations : i) ...

Solve the following in equations :
i) `sqrt(x+2) = sqrt(8-x^(2))`

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The correct Answer is:

i) `{x in R; 2 lt x le 2sqrt2}` ii) `{x in R; 2 le x le 3}` iii) `((74)/(13), infty)`

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