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Input:
timer(-x) and sqrt((9)-x*x)
Write:
`timer(-x) and sqrt((9)-x*x)`
Compute:
$$timer((-x))\ and\ \sqrt {9 - x\ x}$$
Output:
$$timer((-x))\ and\ \sqrt {9 - x\ x}== timer((-x))\ and\ \sqrt {9-{x}^{2}}$$
Result: $$timer((-x))\ and\ \sqrt {9-{x}^{2}}$$
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