Question

Find the domain of √a^2-x^2

Answer 1

Step-by-step explanation:

${a}^{2} - {x}^{2} \geqslant 0\\ \\ (a - x)(a + x) \geqslant 0 \\ (x + a)(x - a) \leqslant 0 \\ x \in [- a ,a]$