An interactive step by step calculator and solver to find the domain of a square root function is presented. As many exmaples as necessary may be generated and the steps explained.
STEP 1: The radicand (the expression under radical) must be positive or equal to 0 so that $f(x)$ takes real values. Write this condition as an inequality.
STEP 2: Solve the inequality obtained and write the domain using inequalities.
STEP 3 : Write the domain using intervals.
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